https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/BLACS-EXIT-doesn-t-call-MPI-FINALIZE/m-p/987579#M17847 <P>I wanted to do some calculations with ScaLAPACK. To introduce myself to the API, I started with the<STRONG></STRONG> <A href="http://software.intel.com/sites/products/documentation/doclib/mkl_sa/11/mklman/GUID-7336B11C-2B31-466B-8173-0F84835CC0BD.htm">"Hello World" example</A> from Intel MKL Reference Guide.</P> <P>While running this code with a square number of processes, everything is going fine, but when using 10 processes, the last process, which doesn't get aligned in the grid, does not call MPI_FINALIZE while calling BLACS_EXIT. I tried to investigate the problem and could create a workaround by checking the finalization state with MPI_FINALIZED and calling MPI_FINALIZE if necessary.</P> <P>But: When I use the tools provided from Ubuntu 12.04 (gfortran 4.6.3, OpenMPI 1.4.3, BLACS 1.1) this problem does *NOT* appear. As a result, I would consider this a bug in Intel MKL.</P> <P>I was using Intel Studio 2013.0.079 and OpenMPI 1.6.2 on SUSE Linux Enterprise Server 11.</P> <P>Best regards!</P> <P></P> Mon, 02 Sep 2013 11:31:41 GMT sunshinekid 2013-09-02T11:31:41Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/BLACS-EXIT-doesn-t-call-MPI-FINALIZE/m-p/987579#M17847 <P>I wanted to do some calculations with ScaLAPACK. To introduce myself to the API, I started with the<STRONG></STRONG> <A href="http://software.intel.com/sites/products/documentation/doclib/mkl_sa/11/mklman/GUID-7336B11C-2B31-466B-8173-0F84835CC0BD.htm">"Hello World" example</A> from Intel MKL Reference Guide.</P> <P>While running this code with a square number of processes, everything is going fine, but when using 10 processes, the last process, which doesn't get aligned in the grid, does not call MPI_FINALIZE while calling BLACS_EXIT. I tried to investigate the problem and could create a workaround by checking the finalization state with MPI_FINALIZED and calling MPI_FINALIZE if necessary.</P> <P>But: When I use the tools provided from Ubuntu 12.04 (gfortran 4.6.3, OpenMPI 1.4.3, BLACS 1.1) this problem does *NOT* appear. As a result, I would consider this a bug in Intel MKL.</P> <P>I was using Intel Studio 2013.0.079 and OpenMPI 1.6.2 on SUSE Linux Enterprise Server 11.</P> <P>Best regards!</P> <P></P> Mon, 02 Sep 2013 11:31:41 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/BLACS-EXIT-doesn-t-call-MPI-FINALIZE/m-p/987579#M17847 sunshinekid 2013-09-02T11:31:41Z