[mpich-discuss] executing time

[bob ilgner]

Hi WL,

What mpiexec command are you using to run your program ? i.e. "mpiexec -n 2
xprogy"
where xprogy is the name of your program ?

What is your timing for the serial case and the timing for the multiple core
case ? Is it a short program that you can list here so we can have a look at
it ? Have you tried to place timing marks in the program to analyse what is
happening ?

Regards, bob

On Tue, Jul 14, 2009 at 1:42 PM, samantha lin <wl8150 at googlemail.com> wrote:

> Hi bob,
>
> It's running on a macbook pro(intel cpu 2 cores); just one laptop and
> filesystem
> is local.
>
> Regards,
> WL
> On Tue, Jul 14, 2009 at 5:37 AM, bob ilgner <bobilgner at gmail.com> wrote:
>
>> Hi WL,
>>
>> What hardware are you running the mpiexec on and what sort of process is
>> this ? A little description please.
>>
>> Regards, bob
>>
>> On Tue, Jul 14, 2009 at 12:49 AM, samantha lin <wl8150 at googlemail.com>wrote:
>>
>>> Hi there,
>>> I am new to MPICH. I just finished a test program which does
>>> matrix multiplication. When I used 'mpiexec' to execute the
>>> program, I found that the more processes, the longer it takes.
>>> Not sure if the result is correct or not? Or I should do some
>>> things more to improve it?
>>>
>>> WL
>>>
>>
>>
>
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