Quantcast
Channel: Clusters and HPC Technology
Browsing all 930 articles
Browse latest View live

I_MPI_STARTUP_MODE documentation is missing

When trying the new release of Intel(R) MPI Library for Linux* OS, Version 2019 Update 3 Build 20190214 I has found that the enviroment variable I_MPI_WAIT_MODE is not supported anymore. The run-time...

View Article


Image may be NSFW.
Clik here to view.

Seg fault in fortran MPI_COMM_CREATE_GROUP, works with Open MPI and MPICH

I'm having a segmentation fault that I can not really understand in a simple code, that just:calls the MPI_INITduplicates the global communicator, via MPI_COMM_DUPcreates a group with half of processes...

View Article


bug: mpiexec segmentation fault

Hello,Starting from Parallel Studio 2019 Update 1, mpiexec fails to run any executable. Example: "mpiexec -np 1 /bin/ls". Any call to mpiexec (except calls like "mpiexec -help") results in Segmentation...

View Article

MPI spawn placement of processes

HiI am trying to spawn processes across nodes using intel mpi with the following code:testmanager.py: from mpi4py import MPI import mpi4py import sys import argparse import os import distutils.spawn...

View Article

Quantum Espresso job dies silently

Hi, SummaryWhile testing scalability of the Quantum Espresso HPC software package, I stumbled on a very strange and annoying problem: when the jobs are run on too many cores, they undergo "sudden...

View Article


Intel MPI library

Dear, all. I can't handle follow issue. I was linking GAMESS with intel mpi, and received the follow error massage: ld: cannot find -lmpigf ld: cannot find -lmpigi Please, help me solve this...

View Article

Default switch-over limits for Intel MPI Library 2019

Hi,The Intel MPI library 2019 uses PSM 2.x interface for Omni-Path fabric and PSM 1.x interface for QDR fabric. For very smaller message size, there is a switch-over in MPI implementation for Omni-Path...

View Article

Mpiexec issue order of machines

Hi all,I am having an issue with mpiexec, I have a bundled install with Fire Dynamics Simulator (FDS) and I am attempting to run a simple hello world script that is bundled with FDS called test_mpi...

View Article


Wrong limit on disp parameter in ILP64 version of MPI_File_set_view?

Hi,Both with some older (17.0.2) and the newest (19.0.3) Intel Fortran Compiler + Intel MPI I experience problems with the function MPI_File_set_view when using the 64-bit integer Fortran interface of...

View Article


ITAC Tool Not Tracing ISend and IRecv MPI Messages

Hi, I am using Intel ITAC 2019.3.032, and testing the NAS parallel benchmarks with MPI. It appears that the ITAC tool is not collecting message logs for non-blocking send/receive (I_Send/I_Recv). The...

View Article

Intel MPI 2018.4 error

Hi     Is there any way of diagnosing what might be causing the following error? PANIC in...

View Article

Internal MPI Errors

Hi all,I'm using Intel MPI Library 2017 Update 1 (v.2017.1.143) for Windows on Windows Server 2012 R2 Standard 64-bit nodes. I'm using 2 identical nodes and each node has the following specs:CPU:...

View Article

Intelpython3

Hi everyone,I'm trying desperately to install intelpython3 without success. I followed this page:https://software.intel.com/en-us/articles/installing-intel-free-libs-and...I'm getting various...

View Article


The problem with the performance of 'pdgetrf': very poor

I want to check the performance of LU factorization on the cluster. So the first, I called pdgetrf routine on the MKL library and execute it in my computer (Intel® Xeon Phi™ Processor 7250)....

View Article

Intel MPI 2019.3 can't work

Dear all,I compiled the program by VS2017 + Intel Parallel Studio 2019.3, and run the program in Windows 7 64 bit. The command to run the program is:mpiexec -n 4 test.exe The following error...

View Article


Does Intel MPI/Windows 2016 support native InfiniBand?

Hi I just check "Intel® MPI Library Release Notes for Windows* OS"  -> https://software.intel.com/en-us/articles/intel-mpi-library-release-note... , that mentioned below Known Issues and...

View Article

parallel_studio_xe_2019_update3_cluster_edition.tgz (mpiexec.hydra - floating...

After installing:parallel_studio_xe_2019_update3_cluster_edition.tgzon any of the following OSes:CentOS 7.6 / RHEL 7.6 / RHEL 8.0and sourcing the corresponding env file:source...

View Article


compilation of MOM5 software, error appears as ld: cannot find -lmpiif

Hi Team, MOM 5 is  being compiled with Intel parallel studio 2017,NETCDF-C-4.6.2& NETCDF-FORTRAN-4.4.5 requisites.The error is "ld: cannot find -lmpiif "The detailed error info provided...

View Article

c mpi (spawn scatter gather) for variable number of processes

I am building up an example with variable no. of processes and bind them to the sockets in a small network with different architecture and number of cpus.I compile and run with:mpiicpc avg_4.c -qopenmp...

View Article

Error observed while running IMB with -DCHECK option

Hi,I am using 'Intel MPI Benchmarks 2019 update 2' with -DCHECK option enabled.The benchmark fails at 'Reduce_local' for sample size 4 and onwards (part of error given below) when tried with 'Intel MPI...

View Article
Browsing all 930 articles
Browse latest View live


<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>