https://community.intel.com/t5/Intel-MPI-Library/How-to-catch-MPI-exception/m-p/837800#M1406 Hi Jimmy,<BR /><BR />Please take a look at the example: <A href="http://www.rz.rwth-aachen.de/global/show_document.asp?id=aaaaaaaaaabluvs">here</A><BR />If you do everything correctly but cannot catch an exception that probably means that MPI functon doesn't return error code.<BR /><BR />Regards!<BR /> Dmitry<BR /> Mon, 19 Apr 2010 08:21:21 GMT Dmitry_K_Intel2 2010-04-19T08:21:21Z https://community.intel.com/t5/Intel-MPI-Library/How-to-catch-MPI-exception/m-p/837799#M1405 Hi,<BR /><BR /> Is there support for MPI::ERRORS_THROW_EXCEPTIONS?<BR /><BR /> I notice thatany exception is not caught when there is network loss.<BR /><BR />Thanks. Mon, 19 Apr 2010 06:49:21 GMT https://community.intel.com/t5/Intel-MPI-Library/How-to-catch-MPI-exception/m-p/837799#M1405 Jimmy821 2010-04-19T06:49:21Z https://community.intel.com/t5/Intel-MPI-Library/How-to-catch-MPI-exception/m-p/837800#M1406 Hi Jimmy,<BR /><BR />Please take a look at the example: <A href="http://www.rz.rwth-aachen.de/global/show_document.asp?id=aaaaaaaaaabluvs">here</A><BR />If you do everything correctly but cannot catch an exception that probably means that MPI functon doesn't return error code.<BR /><BR />Regards!<BR /> Dmitry<BR /> Mon, 19 Apr 2010 08:21:21 GMT https://community.intel.com/t5/Intel-MPI-Library/How-to-catch-MPI-exception/m-p/837800#M1406 Dmitry_K_Intel2 2010-04-19T08:21:21Z https://community.intel.com/t5/Intel-MPI-Library/How-to-catch-MPI-exception/m-p/837801#M1407 Hi,<BR /><BR />Could you please clarify what MPI implementation we are talking about? In the Intel MPi Library the MPI::ERRORS_THROW_EXCEPTIONS is supported according to MPI standard specifications.<BR /><BR />Best regards,<BR />Andrey Mon, 19 Apr 2010 08:36:33 GMT https://community.intel.com/t5/Intel-MPI-Library/How-to-catch-MPI-exception/m-p/837801#M1407 Andrey_D_Intel 2010-04-19T08:36:33Z https://community.intel.com/t5/Intel-MPI-Library/How-to-catch-MPI-exception/m-p/837802#M1408 I am using Intel MPI 4.0. I am running 3 instances of my application on the same computer. To test the exception handling, I forcefully terminate one instance of the application.<BR /><BR />However, it appears that the catch block of the 2 other instances are not triggered. I use standard MPI functions such as MPI_TEST, MPI_BCAST, MPI_IRECV, MPI_SEND, MPI_PEEK.<BR /><BR />Can I additionally check how to use the I_MPI_TCP_NETMASK flag in a configuration file. I could not include this in any way.<BR /><BR />Thanks! Mon, 19 Apr 2010 10:43:15 GMT https://community.intel.com/t5/Intel-MPI-Library/How-to-catch-MPI-exception/m-p/837802#M1408 Jimmy821 2010-04-19T10:43:15Z https://community.intel.com/t5/Intel-MPI-Library/How-to-catch-MPI-exception/m-p/837803#M1409 Just a quick update... I realised that I am able to catch an exception due to software error. For example, there is a mis-match between data size.<BR /><BR />However, my objective is to catch errors due to network disconnection, or the other nodes hang abruptly. In this case, I read that there is no way because mpiexec does not trap the errors and will proceed to terminate all running processes. Mon, 19 Apr 2010 13:38:55 GMT https://community.intel.com/t5/Intel-MPI-Library/How-to-catch-MPI-exception/m-p/837803#M1409 jimmy82 2010-04-19T13:38:55Z https://community.intel.com/t5/Intel-MPI-Library/How-to-catch-MPI-exception/m-p/837804#M1410 Hi Jimmy,<BR /><BR />Please read clause 5 of the Reference Manual about fault tolerance - might be this is your case (or might be you are talking about check-points).<BR />Mpiexec does not catch errors! Mpiexec aborts an application if one of the processes has been aborted because of error.<BR /><BR />Regards!<BR /> Dmitry<BR /> Tue, 20 Apr 2010 05:29:14 GMT https://community.intel.com/t5/Intel-MPI-Library/How-to-catch-MPI-exception/m-p/837804#M1410 Dmitry_K_Intel2 2010-04-20T05:29:14Z