[Pw_forum] Resource usage on Single CPU vs MPI

[Paolo Giannozzi]

On Apr 10, 2008, at 19:51 , Charles Chen wrote:

> Is this difference reasonable?

the difference between what and what?

> for single processor:
>
>> Resource usage summary:
>>
>>     CPU time   :   1680.30 sec.
>>     Max Memory :         4 MB
>>     Max Swap   :        12 MB
>>
>>     Max Processes  :         1
>>     Max Threads    :         1
> for two processors used:
>> Resource usage summary:
>>
>>     CPU time   :  11781.85 sec.
>>     Max Memory :       110 MB
>>     Max Swap   :     59562 MB
>>
>>     Max Processes  :         6
>>     Max Threads    :         6

for the same job? this is absurd. Either you are doing something
very weird, or your machine is very weird
---
Paolo Giannozzi, Dept of Physics, University of Udine
via delle Scienze 208, 33100 Udine, Italy
Phone +39-0432-558216, fax +39-0432-558222