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Old 2022-07-04, 13:34   #617
kriesel
 
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Default strike beta status

Now that v30.8b15 mprime / prime95 have been promoted to general availability at https://www.mersenne.org/download/, "beta" in the thread title no longer accurately reflects the status.
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Old 2022-07-07, 12:28   #618
Kaboom
 
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Quote:
Originally Posted by LOBES View Post
Long story short, my clients, on various machines, no longer send requests for CERT work. I am using Linux64,Prime95,v30.8,build 15.
I, too, haven't got any CERT work since upgrading to 30.8b15.

In my configuration I have the following lines related to CERT work:

Code:
$ grep Cert /var/lib/gimps/local.txt 
CertDailyRemainingLastUpdate=1654697164
CertDailyMBRemaining=40
CertDailyCPURemaining=10
CertWork=1
CertDailyCPULimit=10

Last fiddled with by Kaboom on 2022-07-07 at 12:28
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Old 2022-07-07, 15:28   #619
LOBES
 
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Quote:
Originally Posted by Kaboom View Post
I, too, haven't got any CERT work since upgrading to 30.8b15.

In my configuration I have the following lines related to CERT work:

Code:
$ grep Cert /var/lib/gimps/local.txt 
CertDailyRemainingLastUpdate=1654697164
CertDailyMBRemaining=40
CertDailyCPURemaining=10
CertWork=1
CertDailyCPULimit=10
Can you run a simple
Code:
./mprime -m
and see if it spits out Comm logs trying to get a cert?
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Old 2022-07-07, 20:21   #620
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Since it is hot wave here I decide to run CRUS but on my Ryzen 7 3700x


Quote:
AMD Ryzen 7 3700X 8-Core Processor
CPU speed: 4000.03 MHz, 8 cores
CPU features: 3DNow! Prefetch, SSE, SSE2, SSE4, AVX, AVX2, FMA
L1 cache size: 8x32 KB, L2 cache size: 8x512 KB, L3 cache size: 2x16 MB
L1 cache line size: 64 bytes, L2 cache line size: 64 bytes
I never has any problem with this CPU and he has done a lot of job: even my last own on base2 ( so I have Gerbicz test) to check it. I know no test is perfect, but still. No error at all.


Now I set 2 workers , 4 cores per test ( on base 395. k4) Every time worker 2 gives ok results, and every time worker 1 gives some kind of error.
But when I see this in log I stop all


Quote:
[Worker #1 Jul 6 15:34:58] Possible hardware errors have occurred during the test! 4 ROUNDOFF > 0.4.
[Worker #1 Jul 6 15:34:58] Confidence in final result is poor.
CPU TEMP doesnot exceed 70°C, it is slightly OC ( from 3.8 to 4 Ghz) works as I say for years without problem.
Now I recheck all results (106 of them) from this batch on two other CPU to verify results and so far even "poor" residue match.


Log is attached (ziped)


Any idea?
Attached Files
File Type: zip mprime-07-2022.zip (23.3 KB, 9 views)

Last fiddled with by pepi37 on 2022-07-07 at 20:21
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Old 2022-07-07, 21:05   #621
Prime95
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Quote:
Originally Posted by pepi37 View Post
Any idea?
Just a guess. The errors are hardware related (the round off error is not barely over 0.4, it is way over 0.4).
Perhaps, 1 worker fits completely in the L3 cache and 2 workers does not. This would make 1 worker faster than 2 workers and thus more stressful on the FPU/CPU/caches.
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Old 2022-07-07, 21:43   #622
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576k candidate x2 workers should or not fit in 1x16 MB of L3 cache, my cpu has 2 x 16MB
Since this CPU have one CCX with eight cores , I assume first worker will put candidate in first pat of L3 cache , and second worker will put in second part of L3 cache.
Now I rerun same tests on him also but now in config 4 workers ( 2 cores per workers) and it works perfectly.

I must do additional test to see can I use 2*4 combination on higher FFT size or I will be forced to use 1*8 combination on higher FFT candidate.

Last fiddled with by pepi37 on 2022-07-07 at 22:16
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Old 2022-07-11, 12:36   #623
Kaboom
 
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Quote:
Originally Posted by LOBES View Post
Can you run a simple
Code:
./mprime -m
and see if it spits out Comm logs trying to get a cert?
I set out to do that, with no results at first, but then, somehow, after changing log verbosity, it got a CERT assignment. No idea how I did it, though.
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Old 2022-07-13, 15:32   #624
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I've updated my old 32-bit Dell laptop running Windows 7 Enterprise to p95v308b15, but the program doesn't work. It won't start up; nothing happens.
Can you confirm that Windows 7 32-bit is still supported? The older p95v307b9, which I still have works fine.
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Old 2022-07-14, 04:42   #625
Prime95
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Quote:
Originally Posted by M0CZY View Post
I've updated my old 32-bit Dell laptop running Windows 7 Enterprise to p95v308b15, but the program doesn't work. It won't start up; nothing happens.
Can you confirm that Windows 7 32-bit is still supported? The older p95v307b9, which I still have works fine.
I can confirm it is *supposed* to work. I do not have a 32-bit Windows install to test on. Has anyone else tried 30.8b15 on Win32?
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Old 2022-07-14, 08:37   #626
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Quote:
Originally Posted by M0CZY View Post
I've updated my old 32-bit Dell laptop running Windows 7 Enterprise to p95v308b15, but the program doesn't work. It won't start up; nothing happens.
...
First of all verify in TaskManager that the progam is not running windowless.
Then open a command prompt window, navigate to the Prime95 folder, then launch Prime95. Maybe you will see a message...
If none of this gives any clue, you could try to look in the EventViewer...
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Old 2022-07-15, 11:37   #627
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Quote:
Originally Posted by Kaboom View Post
I set out to do that, with no results at first, but then, somehow, after changing log verbosity, it got a CERT assignment. No idea how I did it, though.
...and then nothing more.
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