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Old 2018-04-07, 15:53   #370
kriesel
 
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"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest

171516 Posts
Default 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.
https://us.msi.com/Graphics-card/sup...iver&Win7%2064
There's a March 23 2018 driver available from AMD, v18.3.4 that I have not tried.
https://support.amd.com/en-us/download

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]

Last fiddled with by kriesel on 2018-04-07 at 15:59
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