1)
Message boards :
Number crunching :
Badges - Full Sets!
(Message 164969)
Posted 28 days ago by Honza
In Full Double Badge Sets club again
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2)
Message boards :
Cullen/Woodall prime search :
CW sieve lifetime
(Message 164548)
Posted 60 days ago by Honza
My recent task is 6008748e9, which is about 6008T.
There are 1000/150 WUs to do 1T, we are doing ~4k tasks per day, two are needed in a WU so about 10-15T per day.
Is it correct?
Looking at CW sieve status, it looks a bit ahead or status page is not updated to current leading edge.
Trying to estimate how long before we reach 7000T or 8000T...?
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3)
Message boards :
Sierpinski/Riesel Base 5 Problem :
SR5 project switched to PRST
(Message 164420)
Posted 67 days ago by Honza
Thanks for explanation, great answer.
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4)
Message boards :
Sierpinski/Riesel Base 5 Problem :
SR5 project switched to PRST
(Message 164398)
Posted 67 days ago by Honza
You MUST use -oGerbicz=1 for LLR2. Did you? It's not enabled by default when b=5
Oops, forgot about that and used old batch file :-(
Thanks for pointing that out.
I will let BOINC run SR5 on my hosts to get more data.
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5)
Message boards :
Sierpinski/Riesel Base 5 Problem :
SR5 project switched to PRST
(Message 164396)
Posted 68 days ago by Honza
Now AMD 7800X3D DDR5 2x32GB, Win 2019.
It's intentionally without affinity since it acts funny otherwise.
PRST looks marginally faster there, with pretty good thread number scaling.
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6)
Message boards :
Sierpinski/Riesel Base 5 Problem :
SR5 project switched to PRST
(Message 164393)
Posted 68 days ago by Honza
OK, performed some tests on my AMD5950X and Win11.
1, 2, 4 and 8 threads, CPU afifinty, no other things running...you know the drill.
It seems that PRST is considerably (~2x) slower with small candidates/primes like 157672*5^333603-1 (80K FFT).
No big deal, we are way past this range.
btw, PRST isn't doing Lucas sequence like LLR2 to verify it's a primes so there is not time penalty in that rare case.
Then I picked up on recent candidates like 60394*5^4384584+1 (1MB FFT)
Those are similar in speed with LLR2 doing a bit better.
I'm reading speed from time per bits since task manager in CPU load/times are way off on Windows 11.
It may be Win11 specific, it may be AMD specific so I may do extra tests on different CPUs/OSes.
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7)
Message boards :
Generalized Fermat Prime Search :
GFN-1x Small Primes search starts 2021-01-21
(Message 162343)
Posted 143 days ago by Honza
Thanks for clarification, Yves.
PG running GFN15 "vector" version would be a great fit.
Separate mix of micro-ranges for GPU and for CPU?
Would validating of GPU only and CPU only work may decrease robustness of tests?
Or split larger GPU work units into smaller ones on upload?
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8)
Message boards :
Generalized Fermat Prime Search :
GFN-1x Small Primes search starts 2021-01-21
(Message 162333)
Posted 144 days ago by Honza
Great gift from Yves Gallot! I just installed new software, Generer20 version 2.0 (ugh). New application is almost two times faster than old version! Old my old 750Ti runtimes on test data block are following:
old software - 108 minutes,
new software - 64 minutes.
With new software, I expect that project will be completed significantly faster.
Please note that application got significant rewrite in different parts, including OpenCL detection code. If you'll notice something unusual, especially in multi-device setups, please post reports here or through PG Discord channels.
Is it the one with super-misleading-extra-confusing name genefer20_2.00.0_win32.exe?
The one that is 2023 and no 2020?
Than one that is Win64 and not Win32?
Than one that is GenegerG for GPU and not for CPU?
The one that has n limited to 16?
Why it isn't named genefer23g_windows64_23.05.07.exe
It got me a while to figure out in the morning, ouch.
The older one runs fine
genefer22g_windows64_22.12.02.exe -p -f gproof -n 16 -b 350164352 -d 0
The new one, nah.
Did the concept radically changed so that we don't test a single candidate but a bunch of b's for single n to speed things up?
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9)
Message boards :
Number crunching :
Badges IV
(Message 162144)
Posted 148 days ago by Honza
Upgraded 
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10)
Message boards :
Number crunching :
Badges IV
(Message 162091)
Posted 149 days ago by Honza
It originally took me months to get to this one 
It will take a day to two to upgrade it to the next level today.
That's not inflation, that's progress.
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