Hi,<BR> <BR>We have never got the DAT_DTO_ERR_TRANSPORT error before. This error usually means the network has problem and is not functional well. I think a proper way to handle it is to report the error and abort the mpi program since it is kind of a fatal error.<BR> <BR>Lei <BR><BR><BR>----- Original Message -----<BR>From: nilesh awate <nilesh_awate@yahoo.com><BR>Date: Tuesday, June 17, 2008 10:58 am<BR>Subject: [mvapich-discuss] dat_evd_dequeue erroneous condition is not handled<BR>To: MVAPICH2 <mvapich-discuss@cse.ohio-state.edu><BR><BR><BR><SPAN>
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<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif"><BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>Hi All,<BR><BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>I am using mvapich2-1.0.1 over udapl stack.<BR><BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>I am getting DAT_DTO_ERR_TRANSPORT error at udapl level, but mpi application is not terminating with some error <BR><BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>as i browse through the code i observe following thing.<BR><BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>ret1 = dat_evd_dequeue (MPIDI_CH3I_RDMA_Process.cq_hndl[i], &event);<BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>if (ret1 == DAT_SUCCESS)<BR>{<BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>assert (event.event_number == DAT_DTO_COMPLETION_EVENT);<BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>/* but there is no check for event.event_data.dto_completion_event_data.status */<BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>. . . .<BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>. . . .<BR><BR>}<BR><BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>but above condition is handled in rdma_udapl_1sc.c file while dequeuing <BR><BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>what is expected behavior of mpi when udapl throws error like DAT_DTO_ERR_TRANSPORT ?<BR><BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>How this kind of error going to be handled at mpi level?<BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>OR<BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>How underlying udapl errors are reflected by mpi ?<BR><BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>I am using pallas as an application for testing purpose <BR><BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>waiting for reply<BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>thanking <BR><FONT style="FONT-WEIGHT: normal; FONT-SIZE: 14px; FONT-STYLE: normal; BACKGROUND-COLOR: #f5f8f0">> </FONT>Nilesh<BR><BR><BR><SPAN style="FONT-WEIGHT: bold; COLOR: rgb(64,160,255)"><SPAN style="COLOR: rgb(0,128,255)"><BR></SPAN></SPAN><BR><BR><BR><BR><!--9-->
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