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MPI_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.

Autor Jonas H. Última actualización 24/05/2017 - 06:22
Mensajes en el blog

Intel® Parallel Studio XE 2016: High Performance for HPC Applications and Big Data Analytics

Intel® Parallel Studio XE 2016, launched on August 25, 2015, is the latest installment in Intel's developer toolkit for high performance computing (HPC) and technical computing applications. This suite of compilers, libraries, debugging facilities, and analysis tools, targets Intel® architecture, including support for the latest Intel® Xeon® processors (codenamed Skylake) and Intel® Xeon Phi™...
Autor James R. Última actualización 18/05/2017 - 13:18
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error 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-mpi

Autor Jingming S. Última actualización 16/05/2017 - 06:38
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Using intel mpi in parallel ANSYS fluent with AMD processors

I set up and use successfully this tutorial ( for clustering 2 machine to run the ansys fluent 17.2 in parallel mode.

Autor milad m. Última actualización 14/05/2017 - 11:41
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Error compiling FFTW3X_CDFT Wrapper on Intel Parallel Studio XE Cluster Ed



kernel: 3.0.101-97

I followed the instructions in:

Autor Martin Gumbau Última actualización 10/05/2017 - 01:51
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old 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

Autor Juan Fernando L. Última actualización 08/05/2017 - 08:57
Forum topic

MPS in 2018 Beta?

I don't find the 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?

Autor Ronald G. Última actualización 04/05/2017 - 15:18
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“make check” fails when compiling parallel HDF5 with intel compilers!


Autor Farrokh A. Última actualización 24/04/2017 - 07:35
Para obtener información más completa sobre las optimizaciones del compilador, consulte nuestro Aviso de optimización.