Dear Gilles, In the meantime the administrators have installed (Thanks!) OpenMPI-1.10.1 with Intel-16.0.0 on the cluster. I have tested it with our code: It works. The time spent for MPI-data transmission was the same as with OpenMPI-1.8.3&Intel-14.0.4, but was ~20% higher than with IMPI-5.1.1&Intel-16.0.0 for the same case running on 3 nodes and 8 procs per node.
Greetings Michael Rachner Von: users [mailto:users-boun...@open-mpi.org] Im Auftrag von Gilles Gouaillardet Gesendet: Freitag, 20. November 2015 00:53 An: Open MPI Users Betreff: Re: [OMPI users] Bug in Fortran-module MPI of OpenMPI 1.10.0 with Intel-Ftn-compiler Michael, in the mean time, you can use 'mpi_f08' instead of 'use mpi' this is really a f90 binding issue, and f08 is safe Cheers, Gilles On 11/19/2015 10:21 PM, michael.rach...@dlr.de<mailto:michael.rach...@dlr.de> wrote: Thank You, Nick and Gilles, I hope the administrators of the cluster will be so kind and will update OpenMPI for me (and others) soon. Greetings Michael Von: users [mailto:users-boun...@open-mpi.org] Im Auftrag von Gilles Gouaillardet Gesendet: Donnerstag, 19. November 2015 12:59 An: Open MPI Users Betreff: Re: [OMPI users] Bug in Fortran-module MPI of OpenMPI 1.10.0 with Intel-Ftn-compiler Thanks Nick for the pointer ! Michael, good news is you do not have to upgrade ifort, but you have to update to 1.10.1 (intel 16 changed the way gcc pragmas are handled, and ompi has been made aware in 1.10.1) 1.10.1 fixes many bugs from 1.10.0, so I strongly encourage anyone to use 1.10.1 Cheers, Gilles On Thursday, November 19, 2015, Nick Papior <nickpap...@gmail.com<mailto:nickpap...@gmail.com>> wrote: Maybe I can chip in, We use OpenMPI 1.10.1 with Intel /2016.1.0.423501 without problems. I could not get 1.10.0 to work, one reason is: http://www.open-mpi.org/community/lists/users/2015/09/27655.php On a side-note, please note that if you require scalapack you may need to follow this approach: https://software.intel.com/en-us/forums/intel-math-kernel-library/topic/590302 2015-11-19 11:24 GMT+01:00 <michael.rach...@dlr.de<mailto:michael.rach...@dlr.de>>: Sorry, Gilles, I cannot update to more recent versions, because what I used is the newest combination of OpenMPI and Intel-Ftn available on that cluster. When looking at the list of improvements on the OpenMPI website for OpenMPI 1.10.1 compared to 1.10.0, I do not remember having seen this item to be corrected. Greeting Michael Rachner Von: users [mailto:users-boun...@open-mpi.org<javascript:_e(%7B%7D,'cvml','users-boun...@open-mpi.org');>] Im Auftrag von Gilles Gouaillardet Gesendet: Donnerstag, 19. November 2015 10:21 An: Open MPI Users Betreff: Re: [OMPI users] Bug in Fortran-module MPI of OpenMPI 1.10.0 with Intel-Ftn-compiler Michael, I remember i saw similar reports. Could you give a try to the latest v1.10.1 ? And if that still does not work, can you upgrade icc suite and give it an other try ? I cannot remember whether this is an ifort bug or the way ompi uses fortran... Btw, any reason why you do not Use mpi_f08 ? HTH Gilles michael.rach...@dlr.de<javascript:_e(%7B%7D,'cvml','michael.rach...@dlr.de');> wrote: Dear developers of OpenMPI, I am trying to run our parallelized Ftn-95 code on a Linux cluster with OpenMPI-1-10.0 and Intel-16.0.0 Fortran compiler. In the code I use the module MPI ("use MPI"-stmts). However I am not able to compile the code, because of compiler error messages like this: /src_SPRAY/mpi_wrapper.f90(2065): error #6285: There is no matching specific subroutin for this generic subroutine call. [MPI_REDUCE] The problem seems for me to be this one: The interfaces in the module MPI for the MPI-routines do not accept a send or receive buffer array, which is actually a variable, an array element or a constant (like MPI_IN_PLACE). Example 1: This does not work (gives the compiler error message: error #6285: There is no matching specific subroutin for this generic subroutine call ) ivar=123 ! <-- ivar is an integer variable, not an array call MPI_BCAST( ivar, 1, MPI_INTEGER, 0, MPI_COMM_WORLD), ierr_mpi ) ! <--- this should work, but is not accepted by the compiler only this cumbersome workaround works: ivar=123 allocate( iarr(1) ) iarr(1) = ivar call MPI_BCAST( iarr, 1, MPI_INTEGER, 0, MPI_COMM_WORLD, ierr_mpi ) ! <--- this workaround works ivar = iarr(1) deallocate( iarr(1) ) Example 2: Any call of an MPI-routine with MPI_IN_PLACE does not work, like that coding: if(lmaster) then call MPI_REDUCE( MPI_IN_PLACE, rbuffarr, nelem, MPI_REAL8, MPI_MAX & ! <--- this should work, but is not accepted by the compiler ,0_INT4, MPI_COMM_WORLD, ierr_mpi ) else ! slaves call MPI_REDUCE( rbuffarr, rdummyarr, nelem, MPI_REAL8, MPI_MAX & ,0_INT4, MPI_COMM_WORLD, ierr_mpi ) endif This results in this compiler error message: /src_SPRAY/mpi_wrapper.f90(2122): error #6285: There is no matching specific subroutine for this generic subroutine call. [MPI_REDUCE] call MPI_REDUCE( MPI_IN_PLACE, rbuffarr, nelem, MPI_REAL8, MPI_MAX & -------------^ In our code I observed the bug with MPI_BCAST, MPI_REDUCE, MPI_ALLREDUCE, but probably there may be other MPI-routines with the same kind of bug. This bug occurred for : OpenMPI-1.10.0 with Intel-16.0.0 In contrast, this bug did NOT occur for: OpenMPI-1.8.8 with Intel-16.0.0 OpenMPI-1.8.8 with Intel-15.0.3 OpenMPI-1.10.0 with gfortran-5.2.0 Greetings Michael Rachner _______________________________________________ users mailing list us...@open-mpi.org<javascript:_e(%7B%7D,'cvml','us...@open-mpi.org');> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users Link to this post: http://www.open-mpi.org/community/lists/users/2015/11/28052.php -- Kind regards Nick _______________________________________________ users mailing list us...@open-mpi.org<mailto:us...@open-mpi.org> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users Link to this post: http://www.open-mpi.org/community/lists/users/2015/11/28056.php
