Re: [Myrinet] register & dma

On Thu, 06 Jun 2002 16:03:38  
 Patrick Geoffray wrote:
>Julien,
>
>TOUCHE Julien wrote:
>>>What do you try to cast, the length field of gm_register_memory 
>
>> yes, with or without a cast, gcc can't compile it ...
>
>Can you send me a small piece of code ? Which gcc are you using ?
>

for gcc, it's a redhat 7.1 so, if i remind me well, it's 2.96.

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


>> and how could i get this adress or is it only the remote adress of 
>> the buffer in the allocation (&message in general) ?
>
>Yes, if this is the pointer to the buffer where you want to write. For 
>example, if you want to write to a int called foo, this will be &foo. 
>(with a cast to (gm_remote_ptr_t) before to pass it to gm_directed_send).
>

ok

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) ?

>Patrick
>
>PS: Julien Touche is very French, do you speak French ?

oui :)


---

Thanks
bye

           Julien Touche


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