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4EvrYng 2021-02-05 03:43

How many FFTs are in this version, please? In other words if I ran stress test at 15 min per FFT how long it would take to complete one full cycle of all FFTs?

Prime95 2021-02-05 04:40

[QUOTE=4EvrYng;570896]How many FFTs are in this version, please? In other words if I ran stress test at 15 min per FFT how long it would take to complete one full cycle of all FFTs?[/QUOTE]

A lot. The exact answer depends on whether you have AVX or AVX-512 instructions available. Note, there's no real benefit (that I know of) to testing every FFT length.

Viliam Furik 2021-02-05 08:00

[QUOTE=4EvrYng;570896]How many FFTs are in this version, please? In other words if I ran stress test at 15 min per FFT how long it would take to complete one full cycle of all FFTs?[/QUOTE]

I didn't bother to count them either, but it is at least one full day, possibly a week.

4EvrYng 2021-02-05 18:08

[QUOTE=Viliam Furik;570903]I didn't bother to count them either, but it is at least one full day, possibly a week.[/QUOTE]

It is not a week. V 29.8B6 had 96 and it would take me around 24hrs to pass through one whole set at 15min each. I'm trying to find out did number of sets in this version increase and, if yes, by how much.

Does anybody know exact answer, please?

Viliam Furik 2021-02-05 19:00

1 Attachment(s)
[QUOTE=4EvrYng;570934]It is not a week. V 29.8B6 had 96 and it would take me around 24hrs to pass through one whole set at 15min each. I'm trying to find out did number of sets in this version increase and, if yes, by how much.

Does anybody know exact answer, please?[/QUOTE]

I think George, as well as me, was talking about all different implementations of FFT, of which there are indeed a lot. I will try to count them, somehow.

BTW, George, I have probably found a bug in benchmarking code (v30.4b6).
I have set it to run from 1K to 65536K, all complex FFTs, not all FFT implementations, 12 cores, 1 worker, no hyperthreading, 5 seconds per FFT.

EDIT:
To answer the question, I don't think the number of different FFTs changed, AFAIK the only big change was the addition of PRP proofs.

VBCurtis 2021-02-05 19:46

[QUOTE=4EvrYng;570934]It is not a week. V 29.8B6 had 96 and it would take me around 24hrs to pass through one whole set at 15min each. I'm trying to find out did number of sets in this version increase and, if yes, by how much.

Does anybody know exact answer, please?[/QUOTE]

George already answered you that the exact answer depends on your CPU. Without that information, he can't answer you- but you can run the test and report here for future interested parties!

Prime95 2021-02-05 20:26

[QUOTE=Viliam Furik;570938]
BTW, George, I have probably found a bug in benchmarking code (v30.4b6).
I have set it to run from 1K to 65536K, all complex FFTs, not all FFT implementations, 12 cores, 1 worker, no hyperthreading, 5 seconds per FFT.[/QUOTE]

AVX FFTs only go to 51200K. This is the ungraceful (disgraceful?) error message you get trying to run an FFT above 50M.

4EvrYng 2021-02-06 20:43

[QUOTE=Viliam Furik;570938]EDIT:
To answer the question, I don't think the number of different FFTs changed, AFAIK the only big change was the addition of PRP proofs.[/QUOTE]

Thank you!

DrobinsonPE 2021-02-07 23:57

I have a CPU that slowed down significantly after doing a benchmark (see below). I do not remember this ever happening before. Is this something where it will speed back up after the next benchmark?

This is a new processor for me. It finished an LL-D on a 60M exponent and then started on a 109M exponent. the pasted text below starts right after the P-1 ended and the PRP starts.

Linux Mint 20.1, mprime V30.3b6, i7-9700K, B365M DS3H, 16GB DDR4-2666

[CODE][Work thread Feb 8 07:37] Setting affinity to run helper thread 6 on CPU core #7
[Work thread Feb 8 07:37] Setting affinity to run helper thread 5 on CPU core #6
[Work thread Feb 8 07:37] Setting affinity to run helper thread 4 on CPU core #5
[Work thread Feb 8 07:37] Setting affinity to run helper thread 7 on CPU core #8
[Work thread Feb 8 07:37] Setting affinity to run helper thread 3 on CPU core #4
[Work thread Feb 8 07:37] Setting affinity to run helper thread 2 on CPU core #3
[Work thread Feb 8 07:37] Setting affinity to run helper thread 1 on CPU core #2
[Work thread Feb 8 07:37] Starting Gerbicz error-checking PRP test of M109831223 using FMA3 FFT length 6M, Pass1=1536, Pass2=4K, clm=1, 8 threads
[Work thread Feb 8 07:37] Preallocating disk space for the proof interim residues file p109831223.residues
[Work thread Feb 8 07:38] PRP proof using power=9 and 64-bit hash size.
[Work thread Feb 8 07:38] Proof requires 7.0GB of temporary disk space and uploading a 137MB proof file.
[Work thread Feb 8 07:39] Iteration: 10000 / 109831223 [0.00%], ms/iter: 7.121, ETA: 9d 01:13
[Work thread Feb 8 07:40] Iteration: 20000 / 109831223 [0.01%], ms/iter: 6.850, ETA: 8d 16:57
[Work thread Feb 8 07:41] Iteration: 30000 / 109831223 [0.02%], ms/iter: 6.851, ETA: 8d 16:56
[Work thread Feb 8 07:42] Iteration: 40000 / 109831223 [0.03%], ms/iter: 6.850, ETA: 8d 16:54
[Work thread Feb 8 07:43] Iteration: 50000 / 109831223 [0.04%], ms/iter: 6.853, ETA: 8d 16:58
..........
[Work thread Feb 8 11:05] Iteration: 1830000 / 109831223 [1.66%], ms/iter: 6.712, ETA: 8d 09:22
[Work thread Feb 8 11:06] Iteration: 1840000 / 109831223 [1.67%], ms/iter: 6.767, ETA: 8d 11:00
[Work thread Feb 8 11:07] Iteration: 1850000 / 109831223 [1.68%], ms/iter: 6.735, ETA: 8d 10:00
[Main thread Feb 8 11:08] Benchmarking multiple workers to tune FFT selection.
[Work thread Feb 8 11:08] Stopping PRP test of M109831223 at iteration 1859123 [1.69%]
[Work thread Feb 8 11:08] Worker stopped while running needed benchmarks.
[Main thread Feb 8 11:08] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.85 ms. Total throughput: 127.42 iter/sec.
[Main thread Feb 8 11:09] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.58 ms. Total throughput: 131.99 iter/sec.
[Main thread Feb 8 11:09] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.60 ms. Total throughput: 131.63 iter/sec.
[Main thread Feb 8 11:09] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.52 ms. Total throughput: 133.01 iter/sec.
[Main thread Feb 8 11:09] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.40 ms. Total throughput: 135.08 iter/sec.
[Main thread Feb 8 11:09] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.70 ms. Total throughput: 129.93 iter/sec.
[Main thread Feb 8 11:10] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.31 ms. Total throughput: 136.72 iter/sec.
[Main thread Feb 8 11:10] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.32 ms. Total throughput: 136.59 iter/sec.
[Main thread Feb 8 11:10] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.15 ms. Total throughput: 139.81 iter/sec.
[Main thread Feb 8 11:10] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.43 ms. Total throughput: 134.54 iter/sec.
[Main thread Feb 8 11:11] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.11 ms. Total throughput: 140.66 iter/sec.
[Main thread Feb 8 11:11] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.07 ms. Total throughput: 141.45 iter/sec.
[Main thread Feb 8 11:11] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.59 ms. Total throughput: 131.72 iter/sec.
[Main thread Feb 8 11:11] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.14 ms. Total throughput: 140.00 iter/sec.
[Main thread Feb 8 11:11] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.28 ms. Total throughput: 137.27 iter/sec.
[Main thread Feb 8 11:12] Timing 6144K FFT, 8 cores, 1 worker. Average times: 8.05 ms. Total throughput: 124.15 iter/sec.
[Main thread Feb 8 11:12] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.50 ms. Total throughput: 133.42 iter/sec.
[Main thread Feb 8 11:12] Timing 6144K FFT, 8 cores, 1 worker. Average times: 7.05 ms. Total throughput: 141.75 iter/sec.
[Main thread Feb 8 11:12]
[Main thread Feb 8 11:12] Throughput benchmark complete.
[Work thread Feb 8 11:12] Benchmarks complete, restarting worker.
[Work thread Feb 8 11:12] Setting affinity to run helper thread 7 on CPU core #8
[Work thread Feb 8 11:12] Setting affinity to run helper thread 6 on CPU core #7
[Work thread Feb 8 11:12] Setting affinity to run helper thread 5 on CPU core #6
[Work thread Feb 8 11:12] Setting affinity to run helper thread 4 on CPU core #5
[Work thread Feb 8 11:12] Setting affinity to run helper thread 3 on CPU core #4
[Work thread Feb 8 11:12] Setting affinity to run helper thread 2 on CPU core #3
[Work thread Feb 8 11:12] Setting affinity to run helper thread 1 on CPU core #2
[Work thread Feb 8 11:12] Resuming Gerbicz error-checking PRP test of M109831223 using FMA3 FFT length 6M, Pass1=1K, Pass2=6K, clm=1, 8 threads
[Work thread Feb 8 11:12] PRP proof using power=9 and 64-bit hash size.
[Work thread Feb 8 11:12] Proof requires 7.0GB of temporary disk space and uploading a 137MB proof file.
[Work thread Feb 8 11:12] Iteration: 1859124 / 109831223 [1.69%].
[Work thread Feb 8 11:12] Iteration: 1860000 / 109831223 [1.69%], ms/iter: 6.919, ETA: 8d 15:31
[Work thread Feb 8 11:14] Iteration: 1870000 / 109831223 [1.70%], ms/iter: 7.067, ETA: 8d 19:56
[Work thread Feb 8 11:15] Iteration: 1880000 / 109831223 [1.71%], ms/iter: 7.015, ETA: 8d 18:21
[Work thread Feb 8 11:16] Iteration: 1890000 / 109831223 [1.72%], ms/iter: 7.014, ETA: 8d 18:18
[Work thread Feb 8 11:17] Iteration: 1900000 / 109831223 [1.72%], ms/iter: 7.034, ETA: 8d 18:53
[Work thread Feb 8 11:18] Iteration: 1910000 / 109831223 [1.73%], ms/iter: 7.017, ETA: 8d 18:20
[Work thread Feb 8 11:20] Iteration: 1920000 / 109831223 [1.74%], ms/iter: 7.286, ETA: 9d 02:24
[Work thread Feb 8 11:21] Iteration: 1930000 / 109831223 [1.75%], ms/iter: 7.038, ETA: 8d 18:57
[Work thread Feb 8 11:22] Iteration: 1940000 / 109831223 [1.76%], ms/iter: 7.023, ETA: 8d 18:28[/CODE]

LaurV 2021-02-08 07:08

[QUOTE=4EvrYng;570896]How many FFTs are in this version, please? In other words if I ran stress test at 15 min per FFT how long it would take to complete one full cycle of all FFTs?[/QUOTE]
An "all possible ways and combinations" [U]benchmark[/U] (not stress test) with 5 seconds per test took about 46 hours in my computer (i7-6950x).

tuckerkao 2021-06-06 01:29

[QUOTE=Prime95;553190]Please upgrade to 30.3 build 2.

Two of the reported bugs were serious:
1) PRPs without proofs (say, if you upgraded from v29) will fail at the the end of the PRP test by trying to create a proof file.
2) Inability to upload proofs from cofactor PRP tests.[/QUOTE]
I just downloaded the newest Prime95 v 30.6 build 4, hopefully all the PRP and PRP-CF proof files will be generated correctly.


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