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2022-06-15, 00:51
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#1 |
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May 2022
1516 Posts |
Iteration Times
Hey, just wanted to ask, is an iteration time of 12-14 ms/iter normal around exponent on the order of 65 million?
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2022-06-15, 00:56
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#2 |
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6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
7·1,523 Posts |
What processor, MB, memory, and how many cores being used?
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2022-06-15, 00:57
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#3 | |
"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest
22·1,667 Posts |
Quote:
Did you use any reference info before asking, such as https://www.mersenneforum.org/showpo...5&postcount=4? Last fiddled with by kriesel on 2022-06-15 at 01:00 |
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2022-06-15, 01:51
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#4 |
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May 2022
3·7 Posts |
Processor: Apple M1 (dunno how many ghz)
Cores: 8 per worker, 1 worker Memory: 8 GB mprime v30.7b9 Running DC on M650xxxxx Last fiddled with by BigNumberGuy on 2022-06-15 at 02:25 |
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2022-06-15, 13:46
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#5 |
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"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest
22×1,667 Posts |
I'm not a Mac user myself, but mixing P cores & E cores in the same worker probably slows things. IIRC mprime does not expect and exploit optimally differing core performance levels in a mix. Try for just the 4 P cores. https://en.wikipedia.org/wiki/Apple_M1#Variants
See also https://mersenneforum.org/showthread.php?t=27112 |
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2022-06-16, 00:24
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#6 |
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May 2022
3·7 Posts |
Ok, I will try that.
EDIT: Nope, doesn't work. Iteration time springs up to about 17 ms/iter when I use 4 cores. Last fiddled with by BigNumberGuy on 2022-06-16 at 00:31 |
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