Re: [Myrinet] register & dma

TOUCHE Julien wrote:

> 	message = gm_register_memory(port, 
> 				&message,
> 				(unsigned int)(size_mem*sizeof(char))
> 				);	// DMA transfer register
> 

The cast on the length field is fine, the assignement of the ouput of 
gm_register_memory (gm_status_t) to "message" is the problem. The status 
should be GM_SUCCESS if the call succeeds.

> One other question, for gm i need two programs (one send, one receive)
> to communicate (not like mpi where i can also call them with mpirun) ?

This is a spawning issue, not a GM issue. You can have one unique code 
for both sides, no problem. However, there is no ID like the MPI ID to 
let you know who you are. When you start a such unique code, you may 
need to differentiate them via a flag or an evironment variable.

Patrick


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|   Patrick Geoffray, Ph.D.      [email protected]
|   Myricom, Inc.                http://www.myri.com
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