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drummers-lowrise
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1)
Message boards :
Aggie The Pew message board
(Message 156059)
Posted 9 days ago by  Crun-chi
And color is changed :)
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2)
Message boards :
Aggie The Pew message board
(Message 156048)
Posted 11 days ago by Crun-chi
This is Anthony & me battling it out for five days. Then Crunchi blowing by both of us like a Space X rocket. 🚀
Ah , good old Ryzen(s) :) Just give him good cooler and there is no limit :)
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3)
Message boards :
Aggie The Pew message board
(Message 156043)
Posted 11 days ago by Crun-chi
 and soon will change color again :)
Nice. Is it a chameleon SR5 badge ? Ha
Yap, gold-amethyst :P
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4)
Message boards :
Aggie The Pew message board
(Message 156038)
Posted 11 days ago by Crun-chi
and soon will change color again :)
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5)
Message boards :
Aggie The Pew message board
(Message 156025)
Posted 12 days ago by Crun-chi
Anthony and I are neck-and-neck:
https://statsgr.id/custom_user_graph.php?challenge_id=2022_4&user0=90031&user1=386066
I have been following our toggle back and forth every few hours. LOL !
Last one to report a unit wins. That is where this is headed. :-)
https://statsgr.id/custom_user_graph.php?challenge_id=2022_4&user0=90031&user1=386066&user2=50683
I dont think I will catch you... but I try :)
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6)
Message boards :
Number crunching :
Strange timings on AMD 3700X
(Message 156003)
Posted 14 days ago by Crun-chi
It seems that when you have more than 4 workers, your L3 cache usage has exceeded your 32 MB of L3 cache.
So your 8 workers are causing the memory subsystem to thrash and all memory requests are going to slow memory, instead of fast L3 cache.
I have no problem with that, and I use 4 workers. But if as you say memory subsystem "fail" why then few cores are double faster then others?
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7)
Message boards :
Aggie The Pew message board
(Message 156002)
Posted 14 days ago by Crun-chi
My race fellows are Lord and Crun-chi :)
I put six new instances , but still without my main computers. And we are in the middle of challenge...
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8)
Message boards :
Number crunching :
Strange timings on AMD 3700X
(Message 155999)
Posted 14 days ago by Crun-chi
I run all tests under Linux and using mprime. Found strange timings but only on 640K and 8 workers, one cpu core per worker (SMT is disabled, Linux is OS) and found no explanation. Any idea?
Prime95 64-bit version 30.8, RdtscTiming=1
Timings for 640K all-complex FFT length (8 cores, 1 worker): 0.43 ms. Throughput: 2317.71 iter/sec.
Timings for 640K all-complex FFT length (8 cores, 2 workers): 0.54, 0.54 ms. Throughput: 3704.59 iter/sec.
Timings for 640K all-complex FFT length (8 cores, 4 workers): 1.05, 1.04, 1.04, 1.04 ms. Throughput: 3831.54 iter/sec.
Timings for 640K all-complex FFT length (8 cores, 8 workers): 4.22, 4.22, 4.22, 2.59, 4.20, 4.20, 2.38, 4.21 ms. Throughput: 2230.50 iter/sec.
Timings for 640K all-complex FFT length (8 cores, 1 worker): 0.43 ms. Throughput: 2330.67 iter/sec.
Timings for 640K all-complex FFT length (8 cores, 2 workers): 0.58, 0.58 ms. Throughput: 3428.54 iter/sec.
Timings for 640K all-complex FFT length (8 cores, 4 workers): 1.13, 1.13, 1.14, 1.13 ms. Throughput: 3530.72 iter/sec.
Timings for 640K all-complex FFT length (8 cores, 8 workers): 4.20, 4.24, 2.60, 4.08, 2.42, 4.35, 4.37, 4.24 ms. Throughput: 2210.83 iter/sec.
Prime95 64-bit version 29.8, RdtscTiming=1
Timings for 640K all-complex FFT length (8 cores, 1 worker): 0.43 ms. Throughput: 2301.15 iter/sec.
Timings for 640K all-complex FFT length (8 cores, 2 workers): 0.55, 0.55 ms. Throughput: 3626.02 iter/sec.
Timings for 640K all-complex FFT length (8 cores, 4 workers): 1.07, 1.07, 1.06, 1.06 ms. Throughput: 3751.43 iter/sec.
Timings for 640K all-complex FFT length (8 cores, 8 workers): 4.29, 2.77, 4.18, 4.32, 4.26, 3.45, 3.01, 4.34 ms. Throughput: 2152.02 iter/sec.
This machine is dedicated just for crunching and nothing else. Also as you can see in red color, not always same core are faster then rest of them.
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9)
Message boards :
Aggie The Pew message board
(Message 155643)
Posted 38 days ago by Crun-chi
I will add more pictures in higher res from my last hiking tour :)
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10)
Message boards :
Aggie The Pew message board
(Message 155201)
Posted 70 days ago by Crun-chi
I am still breathing! 😄
That makes two of us alive :)
I still typing :P
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