Hi Jeff, Now that you mention it, I believe you are right. In fact, I did not know that I needed to set the req_status.MPI_ERROR in my MTL. I looked at the mx mtl and realized that req_status.MPI_ERROR is getting set in their progress function. So, in general, when do you set the req_status.MPI_ERROR? After a send/recv has completed successfully?
Thank You, Sajjad Tabib Jeff Squyres <jsquy...@cisco.com> Sent by: devel-boun...@open-mpi.org 10/31/07 07:29 AM Please respond to Open MPI Developers <de...@open-mpi.org> To Open MPI Developers <de...@open-mpi.org> cc Subject Re: [OMPI devel] Question regarding MCA_PML_CM_SEND_REQUEST_INIT_COMMON I haven't done any work in the cm pml so I can't definitively answer your question, but wouldn't you set req_status.MPI_ERROR in your MTL depending on the result of the request? On Oct 29, 2007, at 9:20 AM, Sajjad Tabib wrote: > > Hi, > > I was issuing an MPI_Bcast in a sample program and was hitting an > unknown error; at least that was what MPI was telling me. I traced > through the code to find my error and came upon > MCA_PML_CM_REQUEST_INIT_COMMON macro function in pml_cm_sendreq.h. > I looked at the function and noticed that in this function the > elements of req_status were getting initialized; however, > req_status.MPI_ERROR was not. I thought that maybe MPI_ERROR must > also require initialization because if the value of MPI_ERROR was > some arbitrary value not equal to MPI_SUCCESS then my program will > definitely die. Unless, MPI_ERROR is propragating from upper layers > to signify an error, but I wasn't sure. Anyway, I assumed that > MPI_ERROR was not propagating from upper layers, so then I set > req_status.MPI_ERROR to MPI_SUCCUSS and reran my test program. My > program worked. Now, having gotten my program to work, I thought I > should run this by you to make sure that MPI_ERROR was not > propagating from upper layers. Is it ok that I did a: > "(req_send)->req_base.req_ompi.req_status.MPI_ERROR = MPI_SUCCESS;" > in MCA_PML_CM_REQUEST_INIT_COMMON? > > Thank You, > > Sajjad Tabib > _______________________________________________ > devel mailing list > de...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/devel -- Jeff Squyres Cisco Systems _______________________________________________ devel mailing list de...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/devel
