[mpich-discuss] calculated a execution time in a parallel programe

[Chafik sanaa]

so I can not base my article on the execution time calculation in my own
machine because I did not have a parallel machine?

2015-03-04 0:43 GMT+01:00 Junchao Zhang <jczhang at mcs.anl.gov>:

> Yes. I believe your i5 machine has least two cores. So it is indeed a
> parallel machine. You should observe some speedup when you run program with
> two MPI processes.
>
> --Junchao Zhang
>
> On Tue, Mar 3, 2015 at 5:44 AM, Chafik sanaa <san.chafik at gmail.com> wrote:
>
>> I use the MPICH2 to parallelize my algorithm on an i5 machine, is the
>> time calculated in this type of machinery is the time actually consumed or
>> estimated in my programe? I ask this question because someone told me that
>> if you do not work on a parallel machine then even if you calculate the
>> execution time in your parallel algorithm and you compare it with the
>> algorithm that you do not use parallelism is not correct.effectively I
>> tried to compare the execution time of both programs but really I find that
>> there's a accelerartion when I use the parallelism
>>
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