Hi Jeff,
Thank you for your reply.
If i don't free the program completes but I'm not sure whether MPI_Isend
automatically frees the buffer after it sends the message. Does it?
I put a long sleep at the end to check the memory used using pmap.
The pmap command reported I'm using around 2GB which I'm guessing it isn't
freeing it.
Is there anything I could try?
Regards,
C.
On Mon, Jul 22, 2019 at 10:59 AM Jeff Squyres (jsquyres) <jsquy...@cisco.com>
wrote:
> > On Jul 21, 2019, at 11:31 AM, carlos aguni via users <
> users@lists.open-mpi.org> wrote:
> >
> > MPI_Isend()
> > ... some stuff..
> > flag = 0;
> > MPI_Test(req, &flag, &status);
> > if (flag){
> > free(buffer);
> > }
> >
> > After the free() i'm getting errors like:
> > [[58327,1],0][btl_tcp_frag.c:130:mca_btl_tcp_frag_send]
> mca_btl_tcp_frag_send: writev error (0x2b9daf474000, 128000000)
> > Bad address(1)
> > [[58327,1],0][btl_tcp_frag.c:130:mca_btl_tcp_frag_send]
> mca_btl_tcp_frag_send: writev error (0x2b9daf473ee8, 19608)
> > Bad address(1)
> > pml_ob1_sendreq.c:308 FATAL
>
> Do you get the same error if you don't free()?
>
> --
> Jeff Squyres
> jsquy...@cisco.com
>
>
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