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#12 |
Aug 2003
2×3 Posts |
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Thanks guys, I'll try that. I started doing it then realized I was on a different computer....
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#13 |
24×11×29 Posts |
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I'm trying to do the same on an Athlon X2 4400, using the latest build of Prime 95 with the -A1 switch. When I leave affinity checked running the torture test takes up 50% of each CPU's utilisation. If I uncheck affinity and select a processor it will run on that CPU, taking up 100% utilisation, but the second instance doesn't want to run on the second CPU.
Any ideas? Tim |
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#14 |
100138 Posts |
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I finally found the answer elsewhere - it was memory related - don't run two copies of Blend, run In Place or Custom with 40% of total memory allocated to each CPU. If that is the case does the memory get as thoroughly tested or should I rely on Memtest 86 for that?
Tim |
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#15 |
May 2005
2·809 Posts |
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Tim, I would recommend setting torture test first to "blend" and then to "custom", finally set "memory to use (in MB)" to ~45% of your available free memory for each instance.
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#16 |
73·23 Posts |
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I bought me a X2 3800+ and I want to run 2 instances and I was reading here but I am having a mental block on how to set up the 2nd instance. Help me..thank you...Noob lol
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#17 | |
6809 > 6502
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Aug 2003
101×103 Posts
919310 Posts |
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Select Run... type in cmd When the window pops up type the following : cd \ <return> cd \Program Files\Prime95 <return> Prime95 -A1 <return> That should start the second copy. |
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#18 |
5018 Posts |
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I tried the -A1 switch just as it says but it tells me that it is an unsuported command.
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#19 |
May 2005
161810 Posts |
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The easiest way is to put prime95 in two different directories...
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#20 |
1001010110002 Posts |
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I have a dual-core Athlon, and setup the second process using the -A1 switch. Everything appears to be working (each process seems to be using it's own core). However, I think they're both computing the same thing:
Output from both processes: Mersenne number primality test program version 24.14 Starting P-1 factoring with B1=385000, B2=3176250 Chance of finding a factor is an estimated 4.89% P-1 on M35850137 with B1=385000, Be=3176250 Using FFT length 2048K Are they calculating the same thing and wasting time? Is this normal/expected output? |
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#21 | |
Account Deleted
"Tim Sorbera"
Aug 2006
San Antonio, TX USA
17·251 Posts |
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#22 |
32×1,051 Posts |
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How exactly do I start up a second instance of Prime95 with the -a1 switch - sorry if this is a real dumb question.
Godric |
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