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Hermann-SW/stacking.Instinct_MI50s.jscad

Created November 5, 2025 22:00
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Simple stacking model allowing AMD Instinct MI50 GPUs to be operated by Riser cards from side
Raw
stacking.Instinct_MI50s.jscad
"use strict"
const jscad = require('@jscad/modeling')
const { intersect, subtract, union } = jscad.booleans
const { translate } = jscad.transforms
const { cuboid } = jscad.primitives
const L=112
const H=41+12
const W=10
const T=5
const D=20
const w=3
const t=2.5
const d=8
function main() {
return [
subtract(
union(
translate([0,0,10/2], cuboid({size: [L+2*W,D,T+10]})),
translate([L/2+W/2,0,(T+H)/2-T/2], cuboid({size: [W,2*D,T+H]})),
translate([-(L/2+W/2),0,(T+H)/2-T/2], cuboid({size: [W,2*D,T+H]})),
translate([(L+W)/2,0,T+H-t/2], cuboid({size: [w,d,t]})),
translate([-(L+W)/2,0,T+H-t/2], cuboid({size: [w,d,t]})),
),
translate([(L+W)/2,0,-T/2+t/2], cuboid({size: [w+0.3,d+0.3,t+0.3]})),
translate([-(L+W)/2,0,-T/2+t/2], cuboid({size: [w+0.3,d+0.3,t+0.3]})),
)
]
}
module.exports = { main }
@Hermann-SW
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Hermann-SW commented Nov 5, 2025 •
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The model in JSCAD:
https://jscad.app/#https://gist.github.com/Hermann-SW/1d0b7f84610e1aee657ab1cad8e09460/raw/108ea6a689a6cc840f11716871df464a3c67d85b/stacking.Instinct_MI50s.jscad

image image

@Hermann-SW
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Hermann-SW commented Nov 5, 2025 •
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BBQ blower fan shroud model

4 stacked Instinct MI50 GPUs, connected to PC with 4 Riser cards:
4-stacked_MI50s 25pc

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Hermann-SW commented Nov 5, 2025 •
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AMD 7600X CPU PC with 5× AMD Instinct MI50 GPUs.
The 32GB VRAM GPU is inside PCs x16 PCIE slot, the 4 stacked GPUs have 16GB VRAM.
PC running in photo, with 5x 6.705 TFLOPs FP64 or 33.525 TFLOPs FP64 theoretical max in total.
5_MI50s 4-stacked 20pc
Power cables from PC inside to power the GPUs as well as the 4 BBQ blower fans.

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Hermann-SW commented Nov 5, 2025 •
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5 MI50s and internal GPU detected:

hermann@7600x:~$ rocminfo | grep Uuid
  Uuid:                    CPU-XX                             
  Uuid:                    GPU-4124412172e62126               
  Uuid:                    GPU-304c70e172dc768c               
  Uuid:                    GPU-d64a58a17330f0ed               
  Uuid:                    GPU-6e56508172dc76b6               
  Uuid:                    GPU-f890794172e62691               
  Uuid:                    GPU-XX                             
hermann@7600x:~$

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Hermann-SW commented Nov 5, 2025 •
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Top GPU is the 32GB MI50 inside PC:

hermann@7600x:~$ clinfo | egrep "(Board|compute)" 
  Board name:					 AMD Radeon Graphics
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Radeon Graphics
  Max compute units:				 1
hermann@7600x:~$

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Hermann-SW commented Nov 5, 2025 •
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Measurents:

Idle power consumption 250W.

gpuowl benchmark (*)

GPU UUID us/iter (*) ID power[W] VRAM[GB]
4124412172e62126 535 0 398 32
304c70e172dc768c 515 1 411 16
d64a58a17330f0ed 530 2 399 16
6e56508172dc76b6 514 3 410 16
f890794172e62691 529 4 380 16

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Hermann-SW commented Nov 7, 2025 •
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I added one more Instinct MI50, now 5 outside and 1 inside PC case.
With theoretical 6.705 TFLOPS FP64 per MI50, this PC now has 40.23 TFLOPS FP64 theoretical max.

All powered from 1850W Zumax PSU inside PC — tests needed how many can work in parallel.
Plan is to have 4 MI50s connected to this (7600X CPU) PC.
And the other 4 MI50s connected to AMD 7950X CPU PC, which has Zumax 1850W PSU inside as well.

hermann@7600x:~$ rocminfo | grep Uuid
  Uuid:                    CPU-XX                             
  Uuid:                    GPU-4124412172e62126               
  Uuid:                    GPU-304c70e172dc768c               
  Uuid:                    GPU-d64a58a17330f0ed               
  Uuid:                    GPU-6e56508172dc76b6               
  Uuid:                    GPU-f890794172e62691               
  Uuid:                    GPU-13c24061732c730c               
  Uuid:                    GPU-XX                             
hermann@7600x:~$ 

hermann@7600x:~$ clinfo | egrep "(Board|compute)" 
  Board name:					 AMD Radeon Graphics
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Radeon Graphics
  Max compute units:				 1
hermann@7600x:~$
40_TFLOPs PC Top two GPU holders 2-colored because beige filament ran empty during 3Dprint.

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Hermann-SW commented Nov 7, 2025 •
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Not sure why the 32GB MI50 inside PC (device 0) has much lower FP64 GFLOPS numbers than the other 16GB MI50s.
It is located on main board PCIE x16 slot, the others on Riser cards.
Riser cards connected to one PCIE x1 slot and to one x1 to 4 port x16 Riser adapter card inside PC.

hermann@7600x:~$ for((d=0;d<6;++d)); do clpeak --compute-dp -d $d | grep "double "; done
      double   : 5850.00
      double   : 6224.23
      double   : 6202.26
      double   : 6228.68
      double   : 6265.88
      double   : 6228.16
hermann@7600x:~$
image

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Hermann-SW commented Nov 7, 2025 •
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Sequential gpuowl benchmark for the 6 MI50s.

There is nothing wrong with not having internal GPU disabled.
But last night I had HDMI cable plugged in to see boot sequence on HDMI display.
That did make displayed GPU UUIDs displayed shifted by one, and therefore wrong.

Now I just unplugged the HDMI cable and executed the same command again.
As can be seen below the gpuowl reported GPU UUIDs for devices 0-5 correspond with UUIDs reported by rocminfo:

hermann@7600x:~/gpuowl-v7.2-131-gca22dce-ubuntu$ rocminfo | grep Uuid
  Uuid:                    CPU-XX                             
  Uuid:                    GPU-4124412172e62126               
  Uuid:                    GPU-304c70e172dc768c               
  Uuid:                    GPU-d64a58a17330f0ed               
  Uuid:                    GPU-6e56508172dc76b6               
  Uuid:                    GPU-f890794172e62691               
  Uuid:                    GPU-13c24061732c730c               
  Uuid:                    GPU-XX                             
hermann@7600x:~/gpuowl-v7.2-131-gca22dce-ubuntu$ 

hermann@7600x:~/gpuowl-v7.2-131-gca22dce-ubuntu$ for((d=0;d<6;++d))
> do
> rm -rf 77* && ./gpuowl -prp 77936867 -iters 30000 -log 10000 -fft 4M -d $d
> echo "================================================"
> done
20251108 23:06:02  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251108 23:06:02  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251108 23:06:02  Note: not found 'config.txt'
20251108 23:06:02  config: -prp 77936867 -iters 30000 -log 10000 -fft 4M -d 0 
20251108 23:06:02  device 0, unique id '4124412172e62126'
20251108 23:06:02 4124412172e62126 77936867 FFT: 4M 1K:8:256 (18.58 bpw)
20251108 23:06:05 4124412172e62126 77936867 OpenCL args "-DEXP=77936867u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=8u -DAMDGPU=1 -DMM_CHAIN=1u -DMM2_CHAIN=2u -DWEIGHT_STEP=0.33644726404543274 -DIWEIGHT_STEP=-0.25174750481886216 -DIWEIGHTS={0,-0.44011820345520131,-0.37306474779553728,-0.29798072935699788,-0.21390437908665341,-0.11975874301407295,-0.014337887291734644,-0.44814572555075455,} -DFWEIGHTS={0,0.78609128957452257,0.5950610473469905,0.42446232150303748,0.2721098723818392,0.1360521812214803,0.014546452690911484,0.81207258201996746,}  -cl-std=CL2.0 -cl-finite-math-only "
20251108 23:06:06 4124412172e62126 77936867 OpenCL compilation in 0.76 s
20251108 23:06:06 4124412172e62126 77936867 PRP starting from beginning
20251108 23:06:06 4124412172e62126 77936867 OK         0 on-load: blockSize 400, 0000000000000003
20251108 23:06:06 4124412172e62126 77936867 validating proof residues for power 8
20251108 23:06:06 4124412172e62126 77936867 Proof using power 8
20251108 23:06:12 4124412172e62126 77936867 OK     10000   0.01% fc4f135f7cf4ad29  535 us/it + check 0.25s + save 0.09s; ETA 11:34
20251108 23:06:18 4124412172e62126 77936867 OK     20000   0.03% 3cd1bd9d5e09cbc5  535 us/it + check 0.25s + save 0.09s; ETA 11:35
20251108 23:06:23 4124412172e62126 77936867 Stopping, please wait..
20251108 23:06:23 4124412172e62126 77936867 OK     30000   0.04% c4e0ff35e3290d98  536 us/it + check 0.25s + save 0.09s; ETA 11:36
20251108 23:06:23 4124412172e62126  Exiting because "stop requested"
20251108 23:06:23 4124412172e62126  Bye
================================================
20251108 23:06:23  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251108 23:06:23  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251108 23:06:23  Note: not found 'config.txt'
20251108 23:06:23  config: -prp 77936867 -iters 30000 -log 10000 -fft 4M -d 1 
20251108 23:06:23  device 1, unique id '304c70e172dc768c'
20251108 23:06:23 304c70e172dc768c 77936867 FFT: 4M 1K:8:256 (18.58 bpw)
20251108 23:06:23 304c70e172dc768c 77936867 OpenCL args "-DEXP=77936867u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=8u -DAMDGPU=1 -DMM_CHAIN=1u -DMM2_CHAIN=2u -DWEIGHT_STEP=0.33644726404543274 -DIWEIGHT_STEP=-0.25174750481886216 -DIWEIGHTS={0,-0.44011820345520131,-0.37306474779553728,-0.29798072935699788,-0.21390437908665341,-0.11975874301407295,-0.014337887291734644,-0.44814572555075455,} -DFWEIGHTS={0,0.78609128957452257,0.5950610473469905,0.42446232150303748,0.2721098723818392,0.1360521812214803,0.014546452690911484,0.81207258201996746,}  -cl-std=CL2.0 -cl-finite-math-only "
20251108 23:06:24 304c70e172dc768c 77936867 OpenCL compilation in 0.79 s
20251108 23:06:24 304c70e172dc768c 77936867 PRP starting from beginning
20251108 23:06:25 304c70e172dc768c 77936867 OK         0 on-load: blockSize 400, 0000000000000003
20251108 23:06:25 304c70e172dc768c 77936867 validating proof residues for power 8
20251108 23:06:25 304c70e172dc768c 77936867 Proof using power 8
20251108 23:06:30 304c70e172dc768c 77936867 OK     10000   0.01% fc4f135f7cf4ad29  514 us/it + check 0.28s + save 0.08s; ETA 11:08
20251108 23:06:36 304c70e172dc768c 77936867 OK     20000   0.03% 3cd1bd9d5e09cbc5  515 us/it + check 0.28s + save 0.10s; ETA 11:08
20251108 23:06:41 304c70e172dc768c 77936867 Stopping, please wait..
20251108 23:06:41 304c70e172dc768c 77936867 OK     30000   0.04% c4e0ff35e3290d98  515 us/it + check 0.28s + save 0.09s; ETA 11:08
20251108 23:06:41 304c70e172dc768c  Exiting because "stop requested"
20251108 23:06:41 304c70e172dc768c  Bye
================================================
20251108 23:06:41  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251108 23:06:41  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251108 23:06:41  Note: not found 'config.txt'
20251108 23:06:41  config: -prp 77936867 -iters 30000 -log 10000 -fft 4M -d 2 
20251108 23:06:41  device 2, unique id 'd64a58a17330f0ed'
20251108 23:06:41 d64a58a17330f0ed 77936867 FFT: 4M 1K:8:256 (18.58 bpw)
20251108 23:06:41 d64a58a17330f0ed 77936867 OpenCL args "-DEXP=77936867u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=8u -DAMDGPU=1 -DMM_CHAIN=1u -DMM2_CHAIN=2u -DWEIGHT_STEP=0.33644726404543274 -DIWEIGHT_STEP=-0.25174750481886216 -DIWEIGHTS={0,-0.44011820345520131,-0.37306474779553728,-0.29798072935699788,-0.21390437908665341,-0.11975874301407295,-0.014337887291734644,-0.44814572555075455,} -DFWEIGHTS={0,0.78609128957452257,0.5950610473469905,0.42446232150303748,0.2721098723818392,0.1360521812214803,0.014546452690911484,0.81207258201996746,}  -cl-std=CL2.0 -cl-finite-math-only "
20251108 23:06:42 d64a58a17330f0ed 77936867 OpenCL compilation in 0.78 s
20251108 23:06:42 d64a58a17330f0ed 77936867 PRP starting from beginning
20251108 23:06:43 d64a58a17330f0ed 77936867 OK         0 on-load: blockSize 400, 0000000000000003
20251108 23:06:43 d64a58a17330f0ed 77936867 validating proof residues for power 8
20251108 23:06:43 d64a58a17330f0ed 77936867 Proof using power 8
20251108 23:06:48 d64a58a17330f0ed 77936867 OK     10000   0.01% fc4f135f7cf4ad29  530 us/it + check 0.28s + save 0.09s; ETA 11:28
20251108 23:06:54 d64a58a17330f0ed 77936867 OK     20000   0.03% 3cd1bd9d5e09cbc5  530 us/it + check 0.28s + save 0.09s; ETA 11:28
20251108 23:06:59 d64a58a17330f0ed 77936867 Stopping, please wait..
20251108 23:07:00 d64a58a17330f0ed 77936867 OK     30000   0.04% c4e0ff35e3290d98  530 us/it + check 0.28s + save 0.09s; ETA 11:28
20251108 23:07:00 d64a58a17330f0ed  Exiting because "stop requested"
20251108 23:07:00 d64a58a17330f0ed  Bye
================================================
20251108 23:07:00  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251108 23:07:00  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251108 23:07:00  Note: not found 'config.txt'
20251108 23:07:00  config: -prp 77936867 -iters 30000 -log 10000 -fft 4M -d 3 
20251108 23:07:00  device 3, unique id '6e56508172dc76b6'
20251108 23:07:00 6e56508172dc76b6 77936867 FFT: 4M 1K:8:256 (18.58 bpw)
20251108 23:07:00 6e56508172dc76b6 77936867 OpenCL args "-DEXP=77936867u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=8u -DAMDGPU=1 -DMM_CHAIN=1u -DMM2_CHAIN=2u -DWEIGHT_STEP=0.33644726404543274 -DIWEIGHT_STEP=-0.25174750481886216 -DIWEIGHTS={0,-0.44011820345520131,-0.37306474779553728,-0.29798072935699788,-0.21390437908665341,-0.11975874301407295,-0.014337887291734644,-0.44814572555075455,} -DFWEIGHTS={0,0.78609128957452257,0.5950610473469905,0.42446232150303748,0.2721098723818392,0.1360521812214803,0.014546452690911484,0.81207258201996746,}  -cl-std=CL2.0 -cl-finite-math-only "
20251108 23:07:00 6e56508172dc76b6 77936867 OpenCL compilation in 0.78 s
20251108 23:07:01 6e56508172dc76b6 77936867 PRP starting from beginning
20251108 23:07:01 6e56508172dc76b6 77936867 OK         0 on-load: blockSize 400, 0000000000000003
20251108 23:07:01 6e56508172dc76b6 77936867 validating proof residues for power 8
20251108 23:07:01 6e56508172dc76b6 77936867 Proof using power 8
20251108 23:07:06 6e56508172dc76b6 77936867 OK     10000   0.01% fc4f135f7cf4ad29  514 us/it + check 0.28s + save 0.09s; ETA 11:07
20251108 23:07:12 6e56508172dc76b6 77936867 OK     20000   0.03% 3cd1bd9d5e09cbc5  514 us/it + check 0.28s + save 0.08s; ETA 11:08
20251108 23:07:17 6e56508172dc76b6 77936867 Stopping, please wait..
20251108 23:07:17 6e56508172dc76b6 77936867 OK     30000   0.04% c4e0ff35e3290d98  514 us/it + check 0.28s + save 0.09s; ETA 11:08
20251108 23:07:17 6e56508172dc76b6  Exiting because "stop requested"
20251108 23:07:17 6e56508172dc76b6  Bye
================================================
20251108 23:07:18  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251108 23:07:18  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251108 23:07:18  Note: not found 'config.txt'
20251108 23:07:18  config: -prp 77936867 -iters 30000 -log 10000 -fft 4M -d 4 
20251108 23:07:18  device 4, unique id 'f890794172e62691'
20251108 23:07:18 f890794172e62691 77936867 FFT: 4M 1K:8:256 (18.58 bpw)
20251108 23:07:18 f890794172e62691 77936867 OpenCL args "-DEXP=77936867u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=8u -DAMDGPU=1 -DMM_CHAIN=1u -DMM2_CHAIN=2u -DWEIGHT_STEP=0.33644726404543274 -DIWEIGHT_STEP=-0.25174750481886216 -DIWEIGHTS={0,-0.44011820345520131,-0.37306474779553728,-0.29798072935699788,-0.21390437908665341,-0.11975874301407295,-0.014337887291734644,-0.44814572555075455,} -DFWEIGHTS={0,0.78609128957452257,0.5950610473469905,0.42446232150303748,0.2721098723818392,0.1360521812214803,0.014546452690911484,0.81207258201996746,}  -cl-std=CL2.0 -cl-finite-math-only "
20251108 23:07:18 f890794172e62691 77936867 OpenCL compilation in 0.79 s
20251108 23:07:19 f890794172e62691 77936867 PRP starting from beginning
20251108 23:07:19 f890794172e62691 77936867 OK         0 on-load: blockSize 400, 0000000000000003
20251108 23:07:19 f890794172e62691 77936867 validating proof residues for power 8
20251108 23:07:19 f890794172e62691 77936867 Proof using power 8
20251108 23:07:25 f890794172e62691 77936867 OK     10000   0.01% fc4f135f7cf4ad29  528 us/it + check 0.28s + save 0.09s; ETA 11:26
20251108 23:07:30 f890794172e62691 77936867 OK     20000   0.03% 3cd1bd9d5e09cbc5  530 us/it + check 0.28s + save 0.08s; ETA 11:28
20251108 23:07:35 f890794172e62691 77936867 Stopping, please wait..
20251108 23:07:36 f890794172e62691 77936867 OK     30000   0.04% c4e0ff35e3290d98  530 us/it + check 0.28s + save 0.09s; ETA 11:28
20251108 23:07:36 f890794172e62691  Exiting because "stop requested"
20251108 23:07:36 f890794172e62691  Bye
================================================
20251108 23:07:36  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251108 23:07:36  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251108 23:07:36  Note: not found 'config.txt'
20251108 23:07:36  config: -prp 77936867 -iters 30000 -log 10000 -fft 4M -d 5 
20251108 23:07:36  device 5, unique id '13c24061732c730c'
20251108 23:07:36 13c24061732c730c 77936867 FFT: 4M 1K:8:256 (18.58 bpw)
20251108 23:07:36 13c24061732c730c 77936867 OpenCL args "-DEXP=77936867u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=8u -DAMDGPU=1 -DMM_CHAIN=1u -DMM2_CHAIN=2u -DWEIGHT_STEP=0.33644726404543274 -DIWEIGHT_STEP=-0.25174750481886216 -DIWEIGHTS={0,-0.44011820345520131,-0.37306474779553728,-0.29798072935699788,-0.21390437908665341,-0.11975874301407295,-0.014337887291734644,-0.44814572555075455,} -DFWEIGHTS={0,0.78609128957452257,0.5950610473469905,0.42446232150303748,0.2721098723818392,0.1360521812214803,0.014546452690911484,0.81207258201996746,}  -cl-std=CL2.0 -cl-finite-math-only "
20251108 23:07:37 13c24061732c730c 77936867 OpenCL compilation in 0.78 s
20251108 23:07:37 13c24061732c730c 77936867 PRP starting from beginning
20251108 23:07:37 13c24061732c730c 77936867 OK         0 on-load: blockSize 400, 0000000000000003
20251108 23:07:37 13c24061732c730c 77936867 validating proof residues for power 8
20251108 23:07:37 13c24061732c730c 77936867 Proof using power 8
20251108 23:07:43 13c24061732c730c 77936867 OK     10000   0.01% fc4f135f7cf4ad29  525 us/it + check 0.26s + save 0.09s; ETA 11:22
20251108 23:07:48 13c24061732c730c 77936867 OK     20000   0.03% 3cd1bd9d5e09cbc5  526 us/it + check 0.26s + save 0.11s; ETA 11:23
20251108 23:07:54 13c24061732c730c 77936867 Stopping, please wait..
20251108 23:07:54 13c24061732c730c 77936867 OK     30000   0.04% c4e0ff35e3290d98  526 us/it + check 0.26s + save 0.09s; ETA 11:23
20251108 23:07:54 13c24061732c730c  Exiting because "stop requested"
20251108 23:07:54 13c24061732c730c  Bye
================================================
hermann@7600x:~/gpuowl-v7.2-131-gca22dce-ubuntu$

@Hermann-SW
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Hermann-SW commented Nov 8, 2025 

hermann@7600x:~/genefer22/bin$ ./geneferg -b 572186 -n 17 -q -d 0
geneferg version 24.04.1 (linux x64, gcc-13.3.0)
Copyright (c) 2022, Yves Gallot
genefer is free source code, under the MIT license.

Command line: '-b 572186 -n 17 -q -d 0'

Running on device 'gfx906:sramecc+:xnack-', vendor 'Advanced Micro Devices, Inc.', version 'OpenCL 2.0 ', driver '3635.0 (HSA1.1,LC)', data size: 3 MB.
572186^{2^17} + 1 is a probable prime, time = 00:02:24.
hermann@7600x:~/genefer22/bin$ ./geneferg -b 572186 -n 17 -q -d 1
geneferg version 24.04.1 (linux x64, gcc-13.3.0)
Copyright (c) 2022, Yves Gallot
genefer is free source code, under the MIT license.

Command line: '-b 572186 -n 17 -q -d 1'

Running on device 'gfx906:sramecc+:xnack-', vendor 'Advanced Micro Devices, Inc.', version 'OpenCL 2.0 ', driver '3635.0 (HSA1.1,LC)', data size: 3 MB.
572186^{2^17} + 1 is a probable prime, time = 00:03:03.
hermann@7600x:~/genefer22/bin$ ./geneferg -b 572186 -n 17 -q -d 2
geneferg version 24.04.1 (linux x64, gcc-13.3.0)
Copyright (c) 2022, Yves Gallot
genefer is free source code, under the MIT license.

Command line: '-b 572186 -n 17 -q -d 2'

Running on device 'gfx906:sramecc+:xnack-', vendor 'Advanced Micro Devices, Inc.', version 'OpenCL 2.0 ', driver '3635.0 (HSA1.1,LC)', data size: 3 MB.
572186^{2^17} + 1 is a probable prime, time = 00:03:03.
hermann@7600x:~/genefer22/bin$ ./geneferg -b 572186 -n 17 -q -d 3
geneferg version 24.04.1 (linux x64, gcc-13.3.0)
Copyright (c) 2022, Yves Gallot
genefer is free source code, under the MIT license.

Command line: '-b 572186 -n 17 -q -d 3'

Running on device 'gfx906:sramecc+:xnack-', vendor 'Advanced Micro Devices, Inc.', version 'OpenCL 2.0 ', driver '3635.0 (HSA1.1,LC)', data size: 3 MB.
572186^{2^17} + 1 is a probable prime, time = 00:02:55.
hermann@7600x:~/genefer22/bin$ ./geneferg -b 572186 -n 17 -q -d 4
geneferg version 24.04.1 (linux x64, gcc-13.3.0)
Copyright (c) 2022, Yves Gallot
genefer is free source code, under the MIT license.

Command line: '-b 572186 -n 17 -q -d 4'

Running on device 'gfx906:sramecc+:xnack-', vendor 'Advanced Micro Devices, Inc.', version 'OpenCL 2.0 ', driver '3635.0 (HSA1.1,LC)', data size: 3 MB.
572186^{2^17} + 1 is a probable prime, time = 00:02:57.
hermann@7600x:~/genefer22/bin$ ./geneferg -b 572186 -n 17 -q -d 5
geneferg version 24.04.1 (linux x64, gcc-13.3.0)
Copyright (c) 2022, Yves Gallot
genefer is free source code, under the MIT license.

Command line: '-b 572186 -n 17 -q -d 5'

Running on device 'gfx906:sramecc+:xnack-', vendor 'Advanced Micro Devices, Inc.', version 'OpenCL 2.0 ', driver '3635.0 (HSA1.1,LC)', data size: 3 MB.
572186^{2^17} + 1 is a probable prime, time = 00:02:58.
hermann@7600x:~/genefer22/bin$

@Hermann-SW
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Hermann-SW commented Nov 8, 2025 •
edited
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PSU used in my AMD 7600X as well as 7950X PC is:
"Mining Zumax ZU 1850W ATX nonModular"

Cables and power supply connectors:

  • 8 cables with 6 + 2pin connectors (on each braid of 2 connectors, all-16 PCs)
    (4 long, 4 short)
  • 3 cables with SATA connectors, Molex
  • 1 cables for connecting to the motherboard.
  • 1 cables for connecting the processor.

I did simply cut a hole into both PC cases where the PSU cables leave PSU inside PC.
4 long and 1 short 8pin cables leave the PCs this way, allowing to power 5 GPUs outside for now.
One GPU is plugged into 7600X PC x16 PCIE slot and powered with one of the remaining 3 short 8pin cables.

imageimage

@Hermann-SW
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Hermann-SW commented Nov 12, 2025 •
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I added two Instinct MI50s from basement, and unplugged my (only) 32GB Instinct MI50 GPU from x16 PCIE slot inside PC and connected outside as well.
This is system working.

All 4 long and 4 short GPU power cables of Zumax 1850W PSU are now in use.
4 long, 1 short and 2 cables with 2× SATA and 2× Molex each leave PC through side hole in PC case.
SATA splitter cable leaves PC back together with remaining 3× GPU power cables.

The 4 Molex connectors are used to power the 8 BBQ fans.
The Riser modules are powered with 8 SATA connectors.
I had to replace the 4× Riser card with a 6× Riser card, one x1 adapter plugs into x16 slot now:

image

After some recabling, now the visible GPU UUID order corresponds to OS view:

hermann@7600x:~$ rocminfo | grep Uuid
  Uuid:                    CPU-XX                             
  Uuid:                    GPU-4124412172e62126               
  Uuid:                    GPU-c49e19417337ece3               
  Uuid:                    GPU-6a0e7961732c730d               
  Uuid:                    GPU-13c24061732c730c               
  Uuid:                    GPU-304c70e172dc768c               
  Uuid:                    GPU-6e56508172dc76b6               
  Uuid:                    GPU-d64a58a17330f0ed               
  Uuid:                    GPU-f890794172e62691               
  Uuid:                    GPU-XX                             
hermann@7600x:~$

Leftmost characters are hidden by 3Dprinted holder in photo, rightmost characters can be compared:
image

Total 3Dprint time for all stckable MI50 holder parts was 48 hours.
IMG_20251112_210520 part

@Hermann-SW
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Hermann-SW commented Nov 12, 2025 •
edited
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Nice output:

hermann@7600x:~$ clinfo | egrep "(Board|compute)" 
  Board name:					 AMD Radeon Graphics
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Instinct MI50/MI60
  Max compute units:				 60
  Board name:					 AMD Radeon Graphics
  Max compute units:				 1
hermann@7600x:~$

Measured peak performances sum up to 49.658 TFLOPs (4.9658×10¹³ double precision floating point operations per second):

hermann@7600x:~$ for((d=0;d<8;++d)); do clpeak --compute-dp -d $d | grep "double "; done
      double   : 5985.70
      double   : 6245.95
      double   : 6220.22
      double   : 6219.18
      double   : 6254.97
      double   : 6239.06
      double   : 6252.34
      double   : 6240.47
hermann@7600x:~$

The 32GB Instinct MI50 keeps outside being slower than the other MI50s.

@Hermann-SW
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Hermann-SW commented Nov 12, 2025

Function test with gpuowl benchmark:

GPU UUID us/iter (*) ID VRAM[GB]
4124412172e62126 537 0 32
c49e19417337ece3 529 1 16
6a0e7961732c730d 530 2 16
13c24061732c730c 530 3 16
304c70e172dc768c 514 4 16
6e56508172dc76b6 514 5 16
d64a58a17330f0ed 529 6 16
f890794172e62691 531 7 16 
hermann@7600x:~$ cd gpuowl-v7.2-131-gca22dce-ubuntu/
hermann@7600x:~/gpuowl-v7.2-131-gca22dce-ubuntu$ for((d=0;d<8;++d)); do rm -rf 77* && ./gpuowl -prp 77936867 -iters 30000 -log 10000 -fft 4M -d $d; echo "================================================"; done
20251112 20:58:39  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 20:58:39  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 20:58:39  Note: not found 'config.txt'
20251112 20:58:39  config: -prp 77936867 -iters 30000 -log 10000 -fft 4M -d 0 
20251112 20:58:39  device 0, unique id '4124412172e62126'
20251112 20:58:39 4124412172e62126 77936867 FFT: 4M 1K:8:256 (18.58 bpw)
20251112 20:58:39 4124412172e62126 77936867 OpenCL args "-DEXP=77936867u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=8u -DAMDGPU=1 -DMM_CHAIN=1u -DMM2_CHAIN=2u -DWEIGHT_STEP=0.33644726404543274 -DIWEIGHT_STEP=-0.25174750481886216 -DIWEIGHTS={0,-0.44011820345520131,-0.37306474779553728,-0.29798072935699788,-0.21390437908665341,-0.11975874301407295,-0.014337887291734644,-0.44814572555075455,} -DFWEIGHTS={0,0.78609128957452257,0.5950610473469905,0.42446232150303748,0.2721098723818392,0.1360521812214803,0.014546452690911484,0.81207258201996746,}  -cl-std=CL2.0 -cl-finite-math-only "
20251112 20:58:40 4124412172e62126 77936867 OpenCL compilation in 0.79 s
20251112 20:58:40 4124412172e62126 77936867 PRP starting from beginning
20251112 20:58:40 4124412172e62126 77936867 OK         0 on-load: blockSize 400, 0000000000000003
20251112 20:58:40 4124412172e62126 77936867 validating proof residues for power 8
20251112 20:58:40 4124412172e62126 77936867 Proof using power 8
20251112 20:58:46 4124412172e62126 77936867 OK     10000   0.01% fc4f135f7cf4ad29  535 us/it + check 0.27s + save 0.09s; ETA 11:35
20251112 20:58:52 4124412172e62126 77936867 OK     20000   0.03% 3cd1bd9d5e09cbc5  537 us/it + check 0.27s + save 0.09s; ETA 11:37
20251112 20:58:57 4124412172e62126 77936867 Stopping, please wait..
20251112 20:58:58 4124412172e62126 77936867 OK     30000   0.04% c4e0ff35e3290d98  537 us/it + check 0.27s + save 0.09s; ETA 11:37
20251112 20:58:58 4124412172e62126  Exiting because "stop requested"
20251112 20:58:58 4124412172e62126  Bye
================================================
20251112 20:58:58  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 20:58:58  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 20:58:58  Note: not found 'config.txt'
20251112 20:58:58  config: -prp 77936867 -iters 30000 -log 10000 -fft 4M -d 1 
20251112 20:58:58  device 1, unique id 'c49e19417337ece3'
20251112 20:58:58 c49e19417337ece3 77936867 FFT: 4M 1K:8:256 (18.58 bpw)
20251112 20:58:58 c49e19417337ece3 77936867 OpenCL args "-DEXP=77936867u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=8u -DAMDGPU=1 -DMM_CHAIN=1u -DMM2_CHAIN=2u -DWEIGHT_STEP=0.33644726404543274 -DIWEIGHT_STEP=-0.25174750481886216 -DIWEIGHTS={0,-0.44011820345520131,-0.37306474779553728,-0.29798072935699788,-0.21390437908665341,-0.11975874301407295,-0.014337887291734644,-0.44814572555075455,} -DFWEIGHTS={0,0.78609128957452257,0.5950610473469905,0.42446232150303748,0.2721098723818392,0.1360521812214803,0.014546452690911484,0.81207258201996746,}  -cl-std=CL2.0 -cl-finite-math-only "
20251112 20:58:58 c49e19417337ece3 77936867 OpenCL compilation in 0.78 s
20251112 20:58:59 c49e19417337ece3 77936867 PRP starting from beginning
20251112 20:58:59 c49e19417337ece3 77936867 OK         0 on-load: blockSize 400, 0000000000000003
20251112 20:58:59 c49e19417337ece3 77936867 validating proof residues for power 8
20251112 20:58:59 c49e19417337ece3 77936867 Proof using power 8
20251112 20:59:05 c49e19417337ece3 77936867 OK     10000   0.01% fc4f135f7cf4ad29  529 us/it + check 0.28s + save 0.09s; ETA 11:27
20251112 20:59:10 c49e19417337ece3 77936867 OK     20000   0.03% 3cd1bd9d5e09cbc5  529 us/it + check 0.28s + save 0.08s; ETA 11:28
20251112 20:59:16 c49e19417337ece3 77936867 Stopping, please wait..
20251112 20:59:16 c49e19417337ece3 77936867 OK     30000   0.04% c4e0ff35e3290d98  529 us/it + check 0.28s + save 0.09s; ETA 11:27
20251112 20:59:16 c49e19417337ece3  Exiting because "stop requested"
20251112 20:59:16 c49e19417337ece3  Bye
================================================
20251112 20:59:16  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 20:59:16  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 20:59:16  Note: not found 'config.txt'
20251112 20:59:16  config: -prp 77936867 -iters 30000 -log 10000 -fft 4M -d 2 
20251112 20:59:16  device 2, unique id '6a0e7961732c730d'
20251112 20:59:16 6a0e7961732c730d 77936867 FFT: 4M 1K:8:256 (18.58 bpw)
20251112 20:59:16 6a0e7961732c730d 77936867 OpenCL args "-DEXP=77936867u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=8u -DAMDGPU=1 -DMM_CHAIN=1u -DMM2_CHAIN=2u -DWEIGHT_STEP=0.33644726404543274 -DIWEIGHT_STEP=-0.25174750481886216 -DIWEIGHTS={0,-0.44011820345520131,-0.37306474779553728,-0.29798072935699788,-0.21390437908665341,-0.11975874301407295,-0.014337887291734644,-0.44814572555075455,} -DFWEIGHTS={0,0.78609128957452257,0.5950610473469905,0.42446232150303748,0.2721098723818392,0.1360521812214803,0.014546452690911484,0.81207258201996746,}  -cl-std=CL2.0 -cl-finite-math-only "
20251112 20:59:17 6a0e7961732c730d 77936867 OpenCL compilation in 0.78 s
20251112 20:59:17 6a0e7961732c730d 77936867 PRP starting from beginning
20251112 20:59:17 6a0e7961732c730d 77936867 OK         0 on-load: blockSize 400, 0000000000000003
20251112 20:59:17 6a0e7961732c730d 77936867 validating proof residues for power 8
20251112 20:59:17 6a0e7961732c730d 77936867 Proof using power 8
20251112 20:59:23 6a0e7961732c730d 77936867 OK     10000   0.01% fc4f135f7cf4ad29  528 us/it + check 0.28s + save 0.09s; ETA 11:26
20251112 20:59:29 6a0e7961732c730d 77936867 OK     20000   0.03% 3cd1bd9d5e09cbc5  530 us/it + check 0.28s + save 0.08s; ETA 11:28
20251112 20:59:34 6a0e7961732c730d 77936867 Stopping, please wait..
20251112 20:59:34 6a0e7961732c730d 77936867 OK     30000   0.04% c4e0ff35e3290d98  530 us/it + check 0.28s + save 0.08s; ETA 11:28
20251112 20:59:34 6a0e7961732c730d  Exiting because "stop requested"
20251112 20:59:34 6a0e7961732c730d  Bye
================================================
20251112 20:59:34  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 20:59:34  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 20:59:34  Note: not found 'config.txt'
20251112 20:59:34  config: -prp 77936867 -iters 30000 -log 10000 -fft 4M -d 3 
20251112 20:59:34  device 3, unique id '13c24061732c730c'
20251112 20:59:34 13c24061732c730c 77936867 FFT: 4M 1K:8:256 (18.58 bpw)
20251112 20:59:34 13c24061732c730c 77936867 OpenCL args "-DEXP=77936867u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=8u -DAMDGPU=1 -DMM_CHAIN=1u -DMM2_CHAIN=2u -DWEIGHT_STEP=0.33644726404543274 -DIWEIGHT_STEP=-0.25174750481886216 -DIWEIGHTS={0,-0.44011820345520131,-0.37306474779553728,-0.29798072935699788,-0.21390437908665341,-0.11975874301407295,-0.014337887291734644,-0.44814572555075455,} -DFWEIGHTS={0,0.78609128957452257,0.5950610473469905,0.42446232150303748,0.2721098723818392,0.1360521812214803,0.014546452690911484,0.81207258201996746,}  -cl-std=CL2.0 -cl-finite-math-only "
20251112 20:59:35 13c24061732c730c 77936867 OpenCL compilation in 0.78 s
20251112 20:59:35 13c24061732c730c 77936867 PRP starting from beginning
20251112 20:59:36 13c24061732c730c 77936867 OK         0 on-load: blockSize 400, 0000000000000003
20251112 20:59:36 13c24061732c730c 77936867 validating proof residues for power 8
20251112 20:59:36 13c24061732c730c 77936867 Proof using power 8
20251112 20:59:41 13c24061732c730c 77936867 OK     10000   0.01% fc4f135f7cf4ad29  529 us/it + check 0.28s + save 0.09s; ETA 11:28
20251112 20:59:47 13c24061732c730c 77936867 OK     20000   0.03% 3cd1bd9d5e09cbc5  530 us/it + check 0.28s + save 0.09s; ETA 11:29
20251112 20:59:52 13c24061732c730c 77936867 Stopping, please wait..
20251112 20:59:53 13c24061732c730c 77936867 OK     30000   0.04% c4e0ff35e3290d98  530 us/it + check 0.29s + save 0.09s; ETA 11:29
20251112 20:59:53 13c24061732c730c  Exiting because "stop requested"
20251112 20:59:53 13c24061732c730c  Bye
================================================
20251112 20:59:53  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 20:59:53  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 20:59:53  Note: not found 'config.txt'
20251112 20:59:53  config: -prp 77936867 -iters 30000 -log 10000 -fft 4M -d 4 
20251112 20:59:53  device 4, unique id '304c70e172dc768c'
20251112 20:59:53 304c70e172dc768c 77936867 FFT: 4M 1K:8:256 (18.58 bpw)
20251112 20:59:53 304c70e172dc768c 77936867 OpenCL args "-DEXP=77936867u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=8u -DAMDGPU=1 -DMM_CHAIN=1u -DMM2_CHAIN=2u -DWEIGHT_STEP=0.33644726404543274 -DIWEIGHT_STEP=-0.25174750481886216 -DIWEIGHTS={0,-0.44011820345520131,-0.37306474779553728,-0.29798072935699788,-0.21390437908665341,-0.11975874301407295,-0.014337887291734644,-0.44814572555075455,} -DFWEIGHTS={0,0.78609128957452257,0.5950610473469905,0.42446232150303748,0.2721098723818392,0.1360521812214803,0.014546452690911484,0.81207258201996746,}  -cl-std=CL2.0 -cl-finite-math-only "
20251112 20:59:54 304c70e172dc768c 77936867 OpenCL compilation in 0.78 s
20251112 20:59:54 304c70e172dc768c 77936867 PRP starting from beginning
20251112 20:59:54 304c70e172dc768c 77936867 OK         0 on-load: blockSize 400, 0000000000000003
20251112 20:59:54 304c70e172dc768c 77936867 validating proof residues for power 8
20251112 20:59:54 304c70e172dc768c 77936867 Proof using power 8
20251112 21:00:00 304c70e172dc768c 77936867 OK     10000   0.01% fc4f135f7cf4ad29  514 us/it + check 0.28s + save 0.09s; ETA 11:08
20251112 21:00:05 304c70e172dc768c 77936867 OK     20000   0.03% 3cd1bd9d5e09cbc5  515 us/it + check 0.28s + save 0.09s; ETA 11:08
20251112 21:00:10 304c70e172dc768c 77936867 Stopping, please wait..
20251112 21:00:11 304c70e172dc768c 77936867 OK     30000   0.04% c4e0ff35e3290d98  514 us/it + check 0.28s + save 0.08s; ETA 11:08
20251112 21:00:11 304c70e172dc768c  Exiting because "stop requested"
20251112 21:00:11 304c70e172dc768c  Bye
================================================
20251112 21:00:11  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 21:00:11  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 21:00:11  Note: not found 'config.txt'
20251112 21:00:11  config: -prp 77936867 -iters 30000 -log 10000 -fft 4M -d 5 
20251112 21:00:11  device 5, unique id '6e56508172dc76b6'
20251112 21:00:11 6e56508172dc76b6 77936867 FFT: 4M 1K:8:256 (18.58 bpw)
20251112 21:00:11 6e56508172dc76b6 77936867 OpenCL args "-DEXP=77936867u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=8u -DAMDGPU=1 -DMM_CHAIN=1u -DMM2_CHAIN=2u -DWEIGHT_STEP=0.33644726404543274 -DIWEIGHT_STEP=-0.25174750481886216 -DIWEIGHTS={0,-0.44011820345520131,-0.37306474779553728,-0.29798072935699788,-0.21390437908665341,-0.11975874301407295,-0.014337887291734644,-0.44814572555075455,} -DFWEIGHTS={0,0.78609128957452257,0.5950610473469905,0.42446232150303748,0.2721098723818392,0.1360521812214803,0.014546452690911484,0.81207258201996746,}  -cl-std=CL2.0 -cl-finite-math-only "
20251112 21:00:12 6e56508172dc76b6 77936867 OpenCL compilation in 0.78 s
20251112 21:00:12 6e56508172dc76b6 77936867 PRP starting from beginning
20251112 21:00:12 6e56508172dc76b6 77936867 OK         0 on-load: blockSize 400, 0000000000000003
20251112 21:00:12 6e56508172dc76b6 77936867 validating proof residues for power 8
20251112 21:00:12 6e56508172dc76b6 77936867 Proof using power 8
20251112 21:00:18 6e56508172dc76b6 77936867 OK     10000   0.01% fc4f135f7cf4ad29  514 us/it + check 0.28s + save 0.08s; ETA 11:08
20251112 21:00:23 6e56508172dc76b6 77936867 OK     20000   0.03% 3cd1bd9d5e09cbc5  514 us/it + check 0.28s + save 0.08s; ETA 11:08
20251112 21:00:28 6e56508172dc76b6 77936867 Stopping, please wait..
20251112 21:00:29 6e56508172dc76b6 77936867 OK     30000   0.04% c4e0ff35e3290d98  514 us/it + check 0.28s + save 0.08s; ETA 11:08
20251112 21:00:29 6e56508172dc76b6  Exiting because "stop requested"
20251112 21:00:29 6e56508172dc76b6  Bye
================================================
20251112 21:00:29  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 21:00:29  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 21:00:29  Note: not found 'config.txt'
20251112 21:00:29  config: -prp 77936867 -iters 30000 -log 10000 -fft 4M -d 6 
20251112 21:00:29  device 6, unique id 'd64a58a17330f0ed'
20251112 21:00:29 d64a58a17330f0ed 77936867 FFT: 4M 1K:8:256 (18.58 bpw)
20251112 21:00:29 d64a58a17330f0ed 77936867 OpenCL args "-DEXP=77936867u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=8u -DAMDGPU=1 -DMM_CHAIN=1u -DMM2_CHAIN=2u -DWEIGHT_STEP=0.33644726404543274 -DIWEIGHT_STEP=-0.25174750481886216 -DIWEIGHTS={0,-0.44011820345520131,-0.37306474779553728,-0.29798072935699788,-0.21390437908665341,-0.11975874301407295,-0.014337887291734644,-0.44814572555075455,} -DFWEIGHTS={0,0.78609128957452257,0.5950610473469905,0.42446232150303748,0.2721098723818392,0.1360521812214803,0.014546452690911484,0.81207258201996746,}  -cl-std=CL2.0 -cl-finite-math-only "
20251112 21:00:29 d64a58a17330f0ed 77936867 OpenCL compilation in 0.78 s
20251112 21:00:30 d64a58a17330f0ed 77936867 PRP starting from beginning
20251112 21:00:30 d64a58a17330f0ed 77936867 OK         0 on-load: blockSize 400, 0000000000000003
20251112 21:00:30 d64a58a17330f0ed 77936867 validating proof residues for power 8
20251112 21:00:30 d64a58a17330f0ed 77936867 Proof using power 8
20251112 21:00:36 d64a58a17330f0ed 77936867 OK     10000   0.01% fc4f135f7cf4ad29  530 us/it + check 0.28s + save 0.09s; ETA 11:28
20251112 21:00:41 d64a58a17330f0ed 77936867 OK     20000   0.03% 3cd1bd9d5e09cbc5  530 us/it + check 0.28s + save 0.11s; ETA 11:28
20251112 21:00:47 d64a58a17330f0ed 77936867 Stopping, please wait..
20251112 21:00:47 d64a58a17330f0ed 77936867 OK     30000   0.04% c4e0ff35e3290d98  529 us/it + check 0.28s + save 0.09s; ETA 11:27
20251112 21:00:47 d64a58a17330f0ed  Exiting because "stop requested"
20251112 21:00:47 d64a58a17330f0ed  Bye
================================================
20251112 21:00:47  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 21:00:47  GpuOwl VERSION v7.2-131-gca22dce-dirty
20251112 21:00:47  Note: not found 'config.txt'
20251112 21:00:47  config: -prp 77936867 -iters 30000 -log 10000 -fft 4M -d 7 
20251112 21:00:47  device 7, unique id 'f890794172e62691'
20251112 21:00:47 f890794172e62691 77936867 FFT: 4M 1K:8:256 (18.58 bpw)
20251112 21:00:47 f890794172e62691 77936867 OpenCL args "-DEXP=77936867u -DWIDTH=1024u -DSMALL_HEIGHT=256u -DMIDDLE=8u -DAMDGPU=1 -DMM_CHAIN=1u -DMM2_CHAIN=2u -DWEIGHT_STEP=0.33644726404543274 -DIWEIGHT_STEP=-0.25174750481886216 -DIWEIGHTS={0,-0.44011820345520131,-0.37306474779553728,-0.29798072935699788,-0.21390437908665341,-0.11975874301407295,-0.014337887291734644,-0.44814572555075455,} -DFWEIGHTS={0,0.78609128957452257,0.5950610473469905,0.42446232150303748,0.2721098723818392,0.1360521812214803,0.014546452690911484,0.81207258201996746,}  -cl-std=CL2.0 -cl-finite-math-only "
20251112 21:00:48 f890794172e62691 77936867 OpenCL compilation in 0.73 s
20251112 21:00:48 f890794172e62691 77936867 PRP starting from beginning
20251112 21:00:48 f890794172e62691 77936867 OK         0 on-load: blockSize 400, 0000000000000003
20251112 21:00:48 f890794172e62691 77936867 validating proof residues for power 8
20251112 21:00:48 f890794172e62691 77936867 Proof using power 8
20251112 21:00:54 f890794172e62691 77936867 OK     10000   0.01% fc4f135f7cf4ad29  525 us/it + check 0.26s + save 0.09s; ETA 11:21
20251112 21:01:00 f890794172e62691 77936867 OK     20000   0.03% 3cd1bd9d5e09cbc5  526 us/it + check 0.26s + save 0.09s; ETA 11:23
20251112 21:01:05 f890794172e62691 77936867 Stopping, please wait..
20251112 21:01:05 f890794172e62691 77936867 OK     30000   0.04% c4e0ff35e3290d98  531 us/it + check 0.26s + save 0.09s; ETA 11:30
20251112 21:01:05 f890794172e62691  Exiting because "stop requested"
20251112 21:01:05 f890794172e62691  Bye
================================================
hermann@7600x:~/gpuowl-v7.2-131-gca22dce-ubuntu$

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