prime95 test results. please help me interpret.

[hippy2981]

could anyone help me interpret the results of my prime95 torture test?

http://people.smu.edu/rmandvik/images/prime95-01.jpg

i have a dual core opteron 170 (@2GHz). i ran one prime85 on cpu-0 and the another instance on cpu-1. the prime95 instance with the more test rans (see pic) is the one that i started first and the later one has very few test ran?? why is that?? i have this happened to me twice.

 

[Shimmishim]

it looks like the affinity isn't being set correctly because only 1 core looks like it is being used by the windows task manager.

 

[hippy2981]

forgot to mention the voltages (from NVmonitor)
CPU: 1.450V
core: 1.53V
mem: 2.62V

 

[hippy2981]

Originally posted by: Shimmishim
it looks like the affinity isn't being set correctly because only 1 core looks like it is being used by the windows task manager.

well, in one instance i set cpu affinity 0 and the other i set cpu affinity1. that's what is said in the readme.txt.
any suggestions??
also, through most of the torture test, the CPU utlilization is only 50% with one of the CPU core maxed out (usually the CPU core whose prime95 instance runs first). i.e. i ran prime95 with cpu affinity 1 first and then launched the prime95 with cpu affinity 0. i saw that the 2nd cpu core was maxed out.

today i ran the prime95 instance with cpu affinity 0 first and then prime95 with cpu afffinity 1. i saw the 1st cpu core maxed out. (see windows TM in pic).

am i doing any thing wrong??

 

[Shimmishim]

try stressprime

http://sp2004.fre3.com/sp2004exe_050330.cab

you can set the affinity in a nice looking gui.

it also shows you time w/o having to have task manager open.

what i do is to set it up is use one install

and create two short cuts

for the target of one i had -a1 at the end
for the target of the second one i add -a0 at the end

then you can manually set the affinities to 0 and 1 in the interface w/o having to use task manager to do so.

 

[hippy2981]

which torture test should i be running so that both the cpu cores are utlilized at the SAME time??
small FFT / large FFT / blend / custom??

the previous two torture test (blend) runs seem to only utilize one core at one time. the first test ran for 2h and the second test ran for 6h44m.

 

[hippy2981]

Originally posted by: Shimmishim
try stressprime

http://sp2004.fre3.com/sp2004exe_050330.cab

you can set the affinity in a nice looking gui.

it also shows you time w/o having to have task manager open.

what i do is to set it up is use one install

and create two short cuts

for the target of one i had -a1 at the end
for the target of the second one i add -a0 at the end

then you can manually set the affinities to 0 and 1 in the interface w/o having to use task manager to do so.

okie. thanks!!!!!!!. i would try that and post. right now, i'm away from that desktop.

 

[Shimmishim]

also use small fft.

some people swear by large. but from my personal experience of testing 50+ cpu's i find that small fft is best.

 

[hippy2981]

btw, do you think the voltages are fine. they are from NVmonitor.

CPU: 1.450V
core: 1.53V
mem: 2.62V

 

[Shimmishim]

i posted in your other thread.

dunno the difference between cpu and core.

usually the cpu voltage is referred to as the vcore. that's why i'm confused

 

[hippy2981]

my system random-crashes sometimes (3 in like 3 days since i built) and then i read about the ballistix 1GB issues nowadays. so i'm running memtest till midnight. then i would run torture tests and have those results posted till tomorrow morning.

please follow up this thread. i would really appreciate that. . thanks for the comments so far.

 

[hippy2981]

back to CPU testing, stressprime is good. thanks Shimmishim. i was able to put both cores on work with a 100% cpu utilization for the small FFTs (kept prority 10 for both). the test ran for 8 hours with no errors and still runnin. i plan to let it run till 12 to 16 hours.
questions are: what is that i should be lookin for apart from the succesful tests?? the vcore and temp?? anythin else??

PS: ran memtest 1.55. 4 passes. no errors. and then switched to memtest 3.2. 4 passes no errors. would be testing it more later due to the known issue with ballistix and would put up a different thread too. sorry for that.

 

[hippy2981]

memtest86'ed the ballistix 1x2gb. 18h, no errors.