[SCore-users-jp] RE: [SCore-users] Communication Performance with Score, with and without network trunking

[Viet]

Dear Atsushi Hori Sensei,

My simple application tries to send messges with different sizes from
process 0 to process 1.
After receive a message, process 1 will print the result (execution
time) to the screen.
After each succesful send-receive action, message size will be added up.
With our Score environment, the application stuck at size=2050 double
precision (about 16KB).

(The application works well with MPICH 1.2.5, 1.2.5, 1.2.7 without Score
installation).

Viet


>-----Original Message-----
>From: Atsushi HORI [mailto:hori ＠ allinea.com] 
>Sent: Thursday, July 13, 2006 8:48 PM
>To: Viet
>Cc: score-users ＠ pccluster.org
>Subject: Re: [SCore-users] Communication Performance with 
>Score, with and without network trunking
>
>
>Hi, Viet,
>
>Here is another support.
>
>On 2006/07/13, at 19:29, Viet wrote:
>
>> One more question, please. With Score MPICH, a large message (say,
>> 2200
>> double, i.e. 2200x8 bye length) cannot be sent with MPI_Send 
>(blocking
>> send). I tried to set P4_GLOBMEMSIZE variable to a large value but it
>> does not work. Could you please give some advice.
>
>How do you know "cannot be sent with MPI_Send" ? What happens ?
>
>MPICH-SCore is not using p4. So any environment variables related to  
>p4 do not work.
>
>
>


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