Questions tagged [mpich]

MPICH is a freely available, portable implementation of MPI, the Standard for message-passing libraries.

MPICH is a high performance and widely portable implementation of the Message Passing Interface (MPI) Standard, a standard for message-passing for distributed-memory applications used in parallel computing. It is used as the foundation for the vast majority of MPI implementations, including IBM MPI (for Blue Gene), Intel MPI, Cray MPI, Microsoft MPI, Myricom MPI, OSU MVAPICH/MVAPICH2, and many others.

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The goals of MPICH are:

  1. To provide an MPI implementation that efficiently supports different computation and communication platforms including commodity clusters (desktop systems, shared-memory systems, multicore architectures), high-speed networks and proprietary high-end computing systems (Blue Gene, Cray).
  2. To enable cutting-edge research in MPI through an easy-to-extend modular framework for other derived implementations.

MPICH is developed primarily by a team at Argonne National Laboratory. The current release is 3.2 and can be downloaded at http://www.mpich.org/downloads.

MPICH has derivative implementations by various vendors including:

  • IBM Platform MPI for many platforms
  • Cray MPI for Cray platforms
  • MS-MPI for Windows platforms
  • Intel MPI for many platforms
  • MVAPICH for InfiniBand
  • SiCortex (MPI SiCortex)
  • Qlogic (MPICH2-PSM)
  • Myricom (MPICH2-MX)
  • and more
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Are there alternatives to MPE if I use MPI?

Are there any alternatives to use something other than MPE if I want to draw in a window with all processes while I use MPI?
Bediko
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MPI programming get external file

i have problem, how to read external file.txt on my mpi code on C. into file.txt containing 10000 word, and i will filter this word remove symbol and number, and i get output like this : A As America And Are Aztec B Bald Bass Best up to Z my…
Ichsan
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Install MPICH2 cannot fild libmpi.so.1 ( uninstalled openmpi already)

I installed mpich2 using: ./configure --prefix=/usr/mpich2-install --enable-threads --enable-shared make make install But when I run a MPI program, there is a error: ./exe_framework: error while loading shared libraries: libmpi.so.1: cannot open…
user3392320
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Mpi_file_open causes hang later in code

When I call: MPI_File_open(k_space_communicator, "TB_schro_BS.dat", MPI_MODE_CREATE|MPI_MODE_WRONLY,MPI_INFO_NULL, &bs_out); MPI_File_close(&bs_out); k_space_communicator works as it is used in many other functions without problem, bs_out is…
rmasp98
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Ubuntu 12.04 and MPICH performance

I am trying to install mpich-3.1 in a linux cluster (Ubuntu 12.04 running on all machines). Previously I installed mpich2 by sudo apt-get install mpich2 but couldn't find how to run tests. Then I removed with sudo apt-get remove mpich2. So I…
pacomet
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Dynamically Creating Communicators

I have a small communication problem that has consumed hours of search. I am using MPICH2 to communicate between different workers. At some points in my program a process needs to multi-cast a message to a fraction of the workers (2 or 3 out of a…
NewToAndroid
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Error while compiling hello world program in mpi in C on openSUSE

PROGRAM : #include #include int main (argc, argv) int argc; char *argv[]; { int rank, size; MPI_Init (&argc, &argv); /* starts MPI */ MPI_Comm_rank (MPI_COMM_WORLD, &rank); /* get current process id */ …
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How accelerate MPI-calls?

I try to accelerate simple MPI-programm with OpenMP. I use MPICH2 and 4-core Intel processor. I have simple code: int main(int argc, char** argv) { int size, rank, provided; const int root = 0; MPI_Init_thread(&argc, &argv,…
user2240771
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Is the MPICH Hydra an alternative for MPD?

I am a user of mpd which come from licensed package. However, I am trying to clone the machine for increasing my parallel computational scope. The action give me a problem of alarm clock, which is I guess related to the licence. My scientific…
Santosa Sandy
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Master node needs to execute mdpboot everytime after fresh restart of system

I have to explicitly boot all the processor nodes every time when my master system restarts i.e mdpboot -n 3 P.S I am implementing beowulf cluster
Salman Hasni
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MPICH-p4 alternative to -nolocal flag

Is there an alternative for the -nolocal option when I run an MPI program using mpiexec of MPICH-p4?
Maddy
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Open MPI ranks are not in order

When i run an "Open MPI" program, it generally assigns ranks in random order I want to know is there a way to always assign ranks in order? So instead of this Hello, World. I am 2 of 3 Hello, World. I am 0 of 3 Hello, World. I am 1 of 3 can i…
Jovi DSilva
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MPI Cart_Create and Cart_coords

I have a 16 processes and each process is randomizing a number. I created a cartesian topology for the processes and now I know what are the coordinates of each rank (process). I wonder where is the "matrix", how can I get the value of each…
Elior
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How does MPI allreduce work

I don't have much experience with MPI and I try to understand how allreduce work. Below is a simple example inspired by this IPython tutorial. 2 MPI engines are launched on a local computer from the IPython notebook dasboard here: In [1]: import…
Cyrille Rossant
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Compiling MPICH 3.0.4 with intel's compilers

I'm have compiled mpich-3.0.4 using ifort and icc in ubuntu 12.04 using the following sequence: export CC=icc export CXX=icpc export CPP='icc -E' export CXXCPP='icpc -E' export F77=ifort export FC=ifort export CFLAGS='-O3 -xHost -ip -no-prec-div…
Mercel Santos
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