Nested MPI process failed with GetParentPort error
Hello,we are trying to execute a tricky code with intel mpi 5.0.2.044.We have a main program executed viampirun -n 1 Exec_mainThis main program makes system call to an external shell script that...
View ArticleWhat could be a cause of the MPI program to run slower on multinode cluster?
Hello everyone,I've got a question about MPI program performance: I've developed an MPI program that processes large amounts of data (about 10^9) elements, and running this program I've noticed that as...
View ArticleWhich logical core does MPI background threads are pinned?
I program in C++ which parallelizes using both MPI and OpenMP (1 MPI process per machine, Multiple threads are exploited by each MPI process)I carefully pin the worker threads of OpenMP and others in...
View ArticleDifferent environment variable on different compute node
I have two computers, the value of environment variable on different computer is not the same. For example, TMP is set to "C:\tmp" on compute 1, and TMP is set to "D:\Temp_Dir" on computer 2. When I...
View ArticleHybrid MPI/OpenMP showing poor performance when using all cores on a socket...
Hi,I'm running a hydrid MPI/OpenMP application on Intel® E5-2600v3 (Haswell) Series cores and I notice a drop in performance by 40% when using all cores (N) on a socket vs. N-1 cores on a socket. This...
View ArticleMPI bad termination error
Hi,I have trouble getting to run the test program linux/mpi/test/test.c included in the Intel MPI package.My trouble only occurs on machines equipped with AMD processors.Specially, I've installed MPI...
View ArticleMPI_File_write_shared problem
Hi,there seems to be a problem with some versions of intelmpi and file access with mpi shared file pointers. The files are not written correctly. We are using intelmpi 2017 on a cluster with gpfs...
View ArticleJoin the Intel® Parallel Studio XE 2018 Beta program
We would like to invite you to participate in the Intel® Parallel Studio XE 2018 Beta program. In this beta test, you will gain early access to new features and analysis techniques. Try them out, tell...
View ArticleWhen I_MPI_FABRICS=shm, the size of MPI_Bcast can't larger than 64kb
I run MPI with a single workstation( 2 x E5 2690).When I export I_MPI_FABRICS=shm, the size of MPI_Bcast can't larger than 64kb.But when I export I_MPI_FABRICS={shm,tcp}, everything is ok.Are there...
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IMB and --input, 2017.0.2
Hi, I've been running IMB with the following command p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 14.0px 'Andale Mono'; color: #ffffff; background-color: #2c67c8} span.s1 {font-variant-ligatures:...
View ArticlePSM2_MQ_RECVREQS_MAX limit reached
Hi,one of our user report us a problem with MPI_Gatherv of intelmpi 2017.The problem is related to the maximum number of irecv requests in flight.To reproduce the problem we set up a test case and run...
View Article“make check” fails when compiling parallel HDF5 with intel compilers!
Greetings,I have problem in "make check" of compiling parallel HDF5 using Intel Compilers on CentOS 6.5 64bit. I exactly follow the procedure described in this page but still get this error:Testing...
View ArticleExecuting a BAT sript with white space in its path + passing arguments with...
Dear All, We recently switched from mpich2 to intel mpi. I have problems starting a bat script when the path to the script and the argument passed to the script both contain whitespaces:...
View ArticleMPS in 2018 Beta?
I don't find the mpsvars.sh environment file in <inst dir>/itac_2018/bin directory (or anywhere else)Is MPS not in the 2018 beta?Will MPS appear in a 2018 Beta Update?Will MPS appear in the 2018...
View Articleold intel/860 parallel program
I am trying to launch an old c program developed for the intel / 860 but I do not know if there could be the MPI equivalent of the following functions: crecv gxsum gsendx irec isend msgcancel...
View ArticleError compiling FFTW3X_CDFT Wrapper on Intel Parallel Studio XE Cluster Ed
Hi,OS: SLES11 SP4kernel: 3.0.101-97I followed the instructions in: https://software.intel.com/en-us/node/522284#566B1CCD-F68B-4E33-BAB2-082...Command: $ make libintel64 interface=ilp64ERROR: ar:...
View ArticleUsing intel mpi in parallel ANSYS fluent with AMD processors
I set up and use successfully this tutorial (https://goo.gl/Ww6bkM) for clustering 2 machine to run the ansys fluent 17.2 in parallel mode. machine 1 (node1) is win server 2012 R2 64bit and machine 2...
View Articleerror in compiling FFTW3 with intel compiler
Dear all,I'm trying to build FFTW3 with intel compiler, according to the guide in FFTW website. I configure FFTW3 as./configure CC=icc F77=ifort MPICC=mpiicc --enable-mpihowever, error reported...
View ArticleMPI_Scatterv/ Gatherv using C++ with "large" 2D matrices throws MPI errors
I implemented some `MPI_Scatterv` and `MPI_Gatherv` routines for a parallel matrix matrix multiplication. Everything works fine for small matrix sizes up to N = 180, if I exceed this size, e.g. N = 184...
View ArticleHow to build connection for two server with infiniband and use intel mpi?
I'm so sorry that i can't find some detail info about using intel mpi to connect two server with infiniband.I want to know the procedure, and if there is any url about this content?Please apply me...
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