[QUOTE=M344587487;483809]Yes I said that. I think that it should work, and that the API just hasn't been fully updated for PRP yet. Short of scraping your assignment details page (or the API equivalent whatever that is) I'm not sure there's a solution. I could be wrong.[/QUOTE]


I have read that Mihai is working on this topic of integration with primenet.

[QUOTE=M344587487;483809]Yes I said that. I think that it should work, and that the API just hasn't been fully updated for PRP yet. Short of scraping your assignment details page (or the API equivalent whatever that is) I'm not sure there's a solution. I could be wrong.[/QUOTE]


I have added some diagnostics to this python script, the content of the fetch is effectively empty, so nothing is being written in the worktodo file except newlines.

[QUOTE=kracker;483209]As requested... instructions on how to compile on windows (I use msys2.. and also there are probably better ways to do it but it's just how I did it)

1) Download, install and follow the instructions for updating MSYS2 here: [URL]https://www.msys2.org/[/URL]
2) Download and install AMD APP SDK(make sure you use the 64bit version) for Windows: [URL]https://developer.amd.com/amd-accelerated-parallel-processing-app-sdk/[/URL]
3) Copy the contents of C:\Program Files (x86)\AMD APP SDK\3.0\lib\x86_64 to C:\msys64\mingw64\lib and C:\Program Files (x86)\AMD APP SDK\3.0\include to C:\msys64\mingw64\include
4) Install gcc (pacman -S mingw-w64-x86_64-gcc)
5) Download gpuowl sources and drop them somewhere(to /home/username/ is probably easiest)
6) Run MSYS2 from mingw64.exe and cd to the directory you extracted the source to
7) Compile by:
g++ -c gpuowl.cpp
g++ -o gpuowl.exe gpuowl.o -lOpenCL -static
strip gpuowl.exe[/QUOTE]

Very helpful.

I tried gpuowl v2 code with the above, got the following.

[CODE]C:\msys64\home\ken>gpuowl -user kriesel -cpu condorella-rx550-0 -device 0
gpuOwL v2.0- GPU Mersenne primality checker
gfx804-8x1203-@28:0.0 Radeon 500 Series
Note: using short, fused carry and fused tail kernels
OpenCL compilation in 1466 ms, with " -DEXP=83871443u -I. -cl-fast-relaxed-math -cl-kernel-arg-info "
PRP-3: FFT 5000K (625 * 4096 * 2) of 83871443 (16.38 bits/word) [2018-04-06 00:59:55 Central Daylight Time]
Starting at iteration 3058000
error -55 (fft4K)
Assertion failed!

Program: C:\msys64\home\ken\gpuowl.exe
File: clwrap.h, Line 267

Expression: check(clEnqueueNDRangeKernel(queue, kernel, 1, __null, &workSize, &groupSize, 0, __null, __null), name.c_str())

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.[/CODE]Windows 7 x64 sp1 & fully patched displayed an appcrash with the following:

[CODE] Problem Event Name: APPCRASH
Application Name: gpuowl.exe
Application Version: 0.0.0.0
Application Timestamp: 00000000
Fault Module Name: gpuowl.exe
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 00000000
Exception Code: 40000015
Exception Offset: 0000000000018f36
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional Information 1: 29e3
Additional Information 2: 29e3d2050e41c7f5d21e1089382ae02d
Additional Information 3: de1c
Additional Information 4: de1ce85cf0adf294aec65c4dce7db4bf
[/CODE]

[QUOTE=kriesel;484518]Very helpful.

I tried gpuowl v2 code with the above, got the following.

[CODE]C:\msys64\home\ken>gpuowl -user kriesel -cpu condorella-rx550-0 -device 0
gpuOwL v2.0- GPU Mersenne primality checker
gfx804-8x1203-@28:0.0 Radeon 500 Series
Note: using short, fused carry and fused tail kernels
OpenCL compilation in 1466 ms, with " -DEXP=83871443u -I. -cl-fast-relaxed-math -cl-kernel-arg-info "
PRP-3: FFT 5000K (625 * 4096 * 2) of 83871443 (16.38 bits/word) [2018-04-06 00:59:55 Central Daylight Time]
Starting at iteration 3058000
error -55 (fft4K)
Assertion failed!

Program: C:\msys64\home\ken\gpuowl.exe
File: clwrap.h, Line 267

Expression: check(clEnqueueNDRangeKernel(queue, kernel, 1, __null, &workSize, &groupSize, 0, __null, __null), name.c_str())

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.[/CODE]Windows 7 x64 sp1 & fully patched displayed an appcrash with the following:

[CODE] Problem Event Name: APPCRASH
Application Name: gpuowl.exe
Application Version: 0.0.0.0
Application Timestamp: 00000000
Fault Module Name: gpuowl.exe
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 00000000
Exception Code: 40000015
Exception Offset: 0000000000018f36
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional Information 1: 29e3
Additional Information 2: 29e3d2050e41c7f5d21e1089382ae02d
Additional Information 3: de1c
Additional Information 4: de1ce85cf0adf294aec65c4dce7db4bf
[/CODE][/QUOTE]



The OpenCL error -55 is "invalid work item size". I have hit the same error once, resolved by changing the gpu driver.
Probably you have installed amdgpu, but you need to install amdgpu-pro.

[QUOTE=SELROC;484525]The OpenCL error -55 is "invalid work item size". I have hit the same error once, resolved by changing the gpu driver.
Probably you have installed amdgpu, but you need to install amdgpu-pro.[/QUOTE]

Thanks. I'll look into whether updating the Windows 7 driver makes any difference.
(Amdgpu and amdgpu-pro appear to be linux-specific.)
I've seen issues with downloaded updates for the AMD RX550 Windows driver in the past, under gpuowl 1.9, so had reverted to the version shipped with the MSI branded hardware. Maybe enough time has passed that it's worth another try with the current latest.

[QUOTE=kriesel;484575]Thanks. I'll look into whether updating the Windows 7 driver makes any difference.
(Amdgpu and amdgpu-pro appear to be linux-specific.)
I've seen issues with downloaded updates for the AMD RX550 Windows driver in the past, under gpuowl 1.9, so had reverted to the version shipped with the MSI branded hardware. Maybe enough time has passed that it's worth another try with the current latest.[/QUOTE]


I have installed amdgpu-pro on Debian, which requires some trickery to install.
Basically you need to edit the installation procedure and substitute "ubuntu" with "debian" in the first case statement. Then the installation will work on Debian too. Do not install firmware-linux-nonfree, it has poor performance.

gpuOwL 2 on Windows 7 sp1 with current updates
 

It failed with an MSI-sourced driver dated April 2017 on an MSI RX550.

It worked with the latest MSI driver 18.2.3 dated Feb 26 2018.
[URL="https://us.msi.com/Graphics-card/support/Radeon-RX-550-AERO-ITX-4G-OC.html#down-driver&Win7%2064"]https://us.msi.com/Graphics-card/support/Radeon-RX-550-AERO-ITX-4G-OC.html#down-driver&Win7%2064[/URL]
There's a March 23 2018 driver available from AMD, v18.3.4 that I have not tried.
[URL]https://support.amd.com/en-us/download[/URL]

Performance of the 5000K fft on the RX550 with the 18.2.3 driver in a quick test (~40,000 iterations each) was:
short carry 17.3 ms/iter,
medium 17.6,
long 17.4,
compared to V1.9 gpuOwL on the same gpu, same pcie physical connection, April 2017 driver,
10.9 ms/iter for -fft DP -legacy -size 4M;
18.9 ms/iter -fft M61 -size 4M;
21.4 ms/iter -fft DP -legacy -size 8M.

The driver change coincided with an increase by about 5% of iteration time, on the same gpu, in V1.9 gpuOwL:
[CODE]gpuOwL v1.9- GPU Mersenne primality checker
Radeon 500 Series 8 @f:0.0, gfx804 1203MHz

OpenCL compilation in 2964 ms, with "-I. -cl-fast-relaxed-math -cl-std=CL2.0 -DEXP=149448041u -DWIDTH=2048u -DHEIGHT=2048u -DLOG_NWORDS=23u -DFP_DP=1 "
PRP-3: FFT 8M (2048 * 2048 * 2) of 149448041 (17.82 bits/word) [2018-04-06 13:34:54 Central Daylight Time]
Starting at iteration 69030500
OK 69030500 / 149448041 [46.19%], 0.00 ms/it; ETA 0d 00:00; f402d0898a94a560 [13:35:10]
OK 69031000 / 149448041 [46.19%], 21.34 ms/it; ETA 19d 20:37; 75f8954003f7699a [13:35:35]
OK 69032000 / 149448041 [46.19%], 21.30 ms/it [21.27, 21.33] CV 0.2%, check 13.87s; ETA 19d 19:48; a828e92c37962e50 [13:36:10]
OK 69035000 / 149448041 [46.19%], 21.29 ms/it [21.27, 21.33] CV 0.1%, check 13.83s; ETA 19d 19:31; 6fa8384867b99be1 [13:37:28]
OK 69040000 / 149448041 [46.20%], 21.40 ms/it [21.27, 22.24] CV 1.4%, check 13.93s; ETA 19d 21:54; 673e4eae09f49243 [13:39:29]
OK 69050000 / 149448041 [46.20%], 21.36 ms/it [21.27, 22.24] CV 1.1%, check 13.82s; ETA 19d 21:06; ff34f1d3d762e0c7 [13:43:16]
OK 69060000 / 149448041 [46.21%], 21.36 ms/it [21.25, 22.24] CV 1.1%, check 13.62s; ETA 19d 20:59; 796e6798379ef1d1 [13:47:03]
OK 69080000 / 149448041 [46.22%], 21.34 ms/it [21.25, 22.78] CV 1.3%, check 13.87s; ETA 19d 20:30; 2f4417db86c153db [13:54:24]
OK 69100000 / 149448041 [46.24%], 21.38 ms/it [21.25, 22.28] CV 1.3%, check 13.84s; ETA 19d 21:12; 1cc95987fefb3e6d [14:01:45]

Stopping, please wait..
OK 69117500 / 149448041 [46.25%], 21.36 ms/it [21.27, 22.25] CV 1.1%, check 13.57s; ETA 19d 20:38; f9d2cf95c539e93e [14:08:13]

Bye
gpuOwL v1.9- GPU Mersenne primality checker
Radeon 550 Series 8 @f:0.0, gfx804 1203MHz

OpenCL compilation in 2901 ms, with "-I. -cl-fast-relaxed-math -cl-std=CL2.0 -DEXP=149448041u -DWIDTH=2048u -DHEIGHT=2048u -DLOG_NWORDS=23u -DFP_DP=1 "
PRP-3: FFT 8M (2048 * 2048 * 2) of 149448041 (17.82 bits/word) [2018-04-06 16:18:38 Central Daylight Time]
Starting at iteration 69117500
OK 69117500 / 149448041 [46.25%], 0.00 ms/it; ETA 0d 00:00; f9d2cf95c539e93e [16:18:55]
OK 69118000 / 149448041 [46.25%], 22.59 ms/it; ETA 21d 00:02; ff48fd98e0c117e6 [16:19:21]
OK 69120000 / 149448041 [46.25%], 22.55 ms/it [22.52, 22.59] CV 0.1%, check 14.83s; ETA 20d 23:08; 32ec21c245f8704f [16:20:21]
[/CODE]

No nVidia support yet?
 

No luck using it with nVidia GPU:
[QUOTE]$ ./gpuowl
gpuOwL v2.0-dbc5a01-mod GPU Mersenne primality checker
GeForce GTX 1080 Ti-28x1607-
Note: using medium, fused carry and fused tail kernels


OpenCL compilation in 5 ms, with " -DEXP=48484841u -DCARRY_MEDIUM=1u -I. -cl-fast-relaxed-math -cl-kernel-arg-info "
PRP-3: FFT 5000K (625 * 4096 * 2) of 48484841 (9.47 bits/word) [2018-04-16 12:57:50 CST]
Starting at iteration 0
error -5 (carryFused)
gpuowl: clwrap.h:267: void run(cl_queue, cl_kernel, size_t, size_t, const string&): Assertion `check(clEnqueueNDRangeKernel(queue, kernel, 1, __null, &workSize, &groupSize, 0, __null, __null), name.c_str())' failed.
Aborted (core dumped)[/QUOTE]

[QUOTE=Lexicographer;485416]No luck using it with nVidia GPU:[/QUOTE]
Ditto, on Windows 7 64-bit, NVIDIA GTX1070.

It looked promising for several seconds after launch, then boom, appcrash dialog box:
[CODE]Problem signature:
Problem Event Name: APPCRASH
Application Name: gpuowl.exe
Application Version: 0.0.0.0
Application Timestamp: 00000000
Fault Module Name: gpuowl.exe
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 00000000
Exception Code: 40000015
Exception Offset: 0000000000018f36
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional Information 1: dd12
Additional Information 2: dd12a83cefd863936d23d0206825e069
Additional Information 3: f88f
Additional Information 4: f88f59fe4ce85bde4365a197b0e610e4

Read our privacy statement online:
http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409

If the online privacy statement is not available, please read our privacy statement offline:
C:\Windows\system32\en-US\erofflps.txt[/CODE]Console text:
[CODE]...> gp

...> gpuowl -device 0 -user kriesel -cpu condorette-gtx1070 -carry long
gpuOwL v2.0- GPU Mersenne primality checker
GeForce GTX 1070-15x1708-
Note: using long carry and fused tail kernels


OpenCL compilation in 2740 ms, with " -DEXP=83871443u -I. -cl-fast-relaxed-math -cl-kernel-arg-info "
PRP-3: FFT 5000K (625 * 4096 * 2) of 83871443 (16.38 bits/word) [2018-05-04 12:25:03 Central Daylight Time]
Starting at iteration 3391500
error -9999 (fft625)
Assertion failed!

Program: c:\Users\Ken\Documents\gpuowl\v2 test\gpuowl.exe
File: clwrap.h, Line 267

Expression: check(clEnqueueNDRangeKernel(queue, kernel, 1, __null, &workSize, &groupSize, 0, __null, __null), name.c_str())

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.[/CODE]

gpuowl RAM consumption ?
 

How much CPU RAM does gpuowl consumes?

[QUOTE=SELROC;488094]How much CPU RAM does gpuowl consumes?[/QUOTE]
Per instance, gpuOwL v1.9 on 8M fft length running exponents ~150M, ~115MB private working set, 145MB working set, 382MB peak working set on Windows 7 64-bit. Meanwhile GPU occupancy ~475-490MB each.