[SCore-users-jp] Re: [SCore-users] MPI and PM at the same time

[Atsushi HORI]

Hi, again.

>So, I'm trying to get both MPI and PM routines from SCore to work together 
>in the same program, but so far I failed. I've seen that most of 
>PM-related routines need a "context" to work with; however, after calling 
>MPI_Init (which calls score_initialize), there is already a context (and 
>only one, cf. score_num_pmnet) that seems to have a NULL ->device. 

This should not happen if the number of nodes is greater than one.

>Is it 
>safe to use the same context for other (non-MPI) operations ? 

No. It is quite dangerous !!

>If not, how 
>do I get another context ? Do I need to open a device (PM_COMPOSITE) and 
>get a context on it and if so how do I know that is the same device that 
>is used by MPI ? (My original idea was to get score_pmnet[0]->device and 
>obtain another context on it, but it's NULL...)

Define the number of network sets with the RESOURCE MACRO, like this.

SCORE_RSRC_NUM_NETS(N)

where N is the number of network sets you want to use. The default is 
one. In your case, you have to have two network sets and say,

SCORE_RSRC_NUM_NETS(2);

somewhere in your code.

The associated nodes are the same in all allocated network sets.

----
Atsushi HORI
Swimmy Software, Inc.

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