MPI is the Message Passing Interface, a library for distributed memory parallel programming and the de facto standard method for using distributed memory clusters for high-performance technical computing. Questions about using MPI for parallel programming go under this tag; questions on, eg, ...

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How to run CADO-NFS on a single virtual machine and multiple virtual machines

I got the following problem about the address of the host when I tried to execute on single virtual machine and also on multiple virtual machines. Info:root: Using default parameter file ...
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How to check if the MPI already installed on my machine

I need to know how to check if MPI is already installed on my machine, and if not how much time it takes to be installed ?
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MPI-programm tries to access via ssh(?)

I got an MPI code which I can't get running. All needed libraries are installed and compiling works with no problem. But when I start the code mpirun -n 2 ./a.out the terminal freezes after some ...
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31 views

How to run a job in several machines that have Ubuntu as operating system

I need to run a job in several virtual machines exists in a specific cloud and I have the IP address for all of them and I configured the hostname for all of them. How to run a command in a network of ...
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Installing gfortran and mpich for a new Ubuntu user

I am a long-term Mac user who is considering switching to Ubuntu. I am not a system guru. I program in fortran and mpi for cfd applications on high-performance computers. I am considering ...
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Error during 'make' while installing open-MPI in Ubuntu 14.04

I am trying to install openmpi-1.10.2 on my Ubuntu 14.04. In order to configure, I have run: ./configure --prefix="/home/pothana/PROGRAMS/OPENMPI-INSTALL/.openmpi" and configuration was ...
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Why ubuntu has such old version of openmpi

I am using ubuntu 15.10. $ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=15.10 DISTRIB_CODENAME=wily DISTRIB_DESCRIPTION="Ubuntu 15.10" I was wondering, why ubuntu is using so old openmpi ...
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How to set up a network of Ubuntu virtual machines via Virtualbox?

I am trying to create a network using 3 virtual Ubuntu machines (master, slave1, slave2). I hope posting this question here is acceptable. I'm not sure if the problem lies within Virtualbox ...
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Problem with mpiCC

I just downloaded openmpi 1.10.2 from https://www.open-mpi.org/software/ompi/v1.10/ and installed it on my ubuntu 14.04LTS(./configure then make all install). But when I try to use mpiCC to compile a ...
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mpiexec won't run mpi4py script when two hosts are utilized

So I have this other desktop PC, that serves as my server, primesystem and a laptop as my client, zerosystem that is connected to it. They both serve as my ssh-server and ssh-client respectively, and ...
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How to remove OpenMPI without removing boost devs?

It appears that I have both OpenMPI and Mpich on my ubuntu, which is causing problems for one program I'm working with. I think that program only works with Mpich. Thats why I want to remove OpenMPI. ...
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soft/hard behavior of distributed mpi process

I use Ansys FLUENT software frequently and for huge cases I use its parallel option. I saw that running parallel jobs in windows OS behaves similar to soft connection(when a node connection drops, it ...
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Error running parallel code ubuntu server: ssh-askpass not found

I have ubuntu 14.04 server with PBS queue system. I'm trying to run a parallel code (I only have the binaries). The code exits and this is one of the messages: ssh_askpass: ...
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34 views

Trouble linking libraries in FFTW

This error happens when I try to execute a Makefile: /usr/bin/ld: cannot find -lrfftw_mpi /usr/bin/ld: cannot find -lfftw_mpi /usr/bin/ld: cannot find -lrfftw collect2: error: ld returned 1 exit ...
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mpich2 installation error [duplicate]

i'm actually having a problem while installing mpich2. i'm using latest Ubuntu 14.04 LTS on 64 bit computer.i followed the steps in https://help.ubuntu.com/community/MpichCluster and ...
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Package throwing errors after asystem update

I was running a finite element analysis package named Bison and it was running fine until yesterday when I installed system updates on my Ubuntu 14.04 desktop. Since the update, I am getting the ...
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154 views

MPI Terminal Help manual..!

Is there is any possible way to get a developer manual help for the MPI commands in terminal. i tried mpi --help and mpich --help (because the mpi version command looks like mpich --version)but no ...
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83 views

error while compiling mpi application

I am trying to run a fortran code that supposed to be running on a different machine using mpif90 linked with ifort compiler. When I type in the command: mpif90 -g -O3 -pg main.f I get errors as the ...
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183 views

ssh keeps asking for a password

I am trying to set up an MPI cluster, following Setting Up an MPICH2 Cluster in Ubuntu tutorial. At the end of step 7, it says that I should not receive a password request, which unfortunately is not ...
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Beowulf cluster hard disk problem

I built a Beowulf cluster using the message passing interface (MPI). When I send a message that contains the path for a specific file in the slave node, the slave can't access its local hard disk to ...
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1answer
16k views

installing openmpi on Ubuntu 14.04 [duplicate]

I am trying to instlal OpenMPI on my Ubuntu 14.04 LTS following this guide When I run the command sudo apt-get install -y autotools-dev g++ build-essential openmpi1.5-bin openmpi1.5-doc ...
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2answers
80 views

missing library when running make?

I am trying to install a program on my machine (running Ubuntu 12.04), but I get the following error when I run make: Starting build... Working Directory : /home/laptop/mplabs_test Build Type ...
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168 views

Problem running octave with openmpi in juju

I am attempting to use openmpi from octave to start other octave instances on remote machines. When I run the scrip that should start the various processes, it complains about libraries being out of ...
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“cannot find -lmpi*” when compiling openmpi code

I had try to install openmpi 1.8.1 from the source code at Unbuntu 14.04 server. I would like to use mpi for large scale calculation on single machine with multi cores. The simple "Hello world" test ...
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2answers
428 views

Multiple hosts password problem using mpirun

So I am running a parallel c++ program by sending jobs from an Ubuntu machine to remote hosts (also Ubuntu), the command line I use on the terminal is something like: mpirun -np 4 --host host1,host2 ...
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217 views

mpdboot and mpdtrace gives Alarm Clock as a result

I try to execute mpdboot -n 2 -f /home/user/mpd.hosts and then mpdtrace However, both of them gives strange result as Alarm clock Can somebody tell me what is wrong with that, please Thanks ...
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44 views

Where to find openmpi-doc on my ubuntu 12.04?

I installed openmpi by apt-get install openmpi-doc. I think it is some folder that contain the document on openmpi? where can I find it? I just switched from Windows to Bbuntu, so a lot of things are ...
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718 views

Mpi file not recognized?

I am trying to compile some mpi files on Ubuntu I installed the library using this code sudo apt-get install libcr-dev mpich2 mpich2-doc and tried to compile this simple hello world program /* C ...
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1answer
5k views

Unable to locate package libopenmpi-dev on 12.04

While trying to install open mpi on my Ubuntu 12.04, I am getting error unable to locate package libopenmpi-dev. What to do? $ sudo apt-get install libopenmpi-dev openmpi-bin openmpi-doc unable to ...
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10k views

What is the difference MPI vs OpenMP? [closed]

I just want to know the differences between MPI vs OpenMP for a school project I have. I'm new on Ubuntu and i can't find a trustworthy website. I tried so many now. Please help me!