MPICH, formerly known as MPICH2, is a freely available, portable implementation of MPI, a standard for message-passing for distributed-memory applications used in

parallel computing Parallel computing is a type of computation in which many calculations or processes are carried out simultaneously. Large problems can often be divided into smaller ones, which can then be solved at the same time. There are several different fo ...

. MPICH is

Free and open source software Free and open-source software (FOSS) is a term used to refer to groups of software consisting of both free software and open-source software where anyone is freely licensed to use, copy, study, and change the software in any way, and the source ...

with some

public domain The public domain (PD) consists of all the creative work A creative work is a manifestation of creative effort including fine artwork (sculpture, paintings, drawing, sketching, performance art), dance, writing (literature), filmmaking, ...

components that were developed by a US governmental organisation, and is available for most flavours of

Unix-like A Unix-like (sometimes referred to as UN*X or *nix) operating system is one that behaves in a manner similar to a Unix system, although not necessarily conforming to or being certified to any version of the Single UNIX Specification. A Unix-li ...

OS (including

Linux Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, which ...

and

Mac OS X macOS (; previously OS X and originally Mac OS X) is a Unix operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac (computer), Mac computers. Within the market of ...

History

The

Argonne National Laboratory Argonne National Laboratory is a science and engineering research United States Department of Energy National Labs, national laboratory operated by University of Chicago, UChicago Argonne LLC for the United States Department of Energy. The facil ...

and

Mississippi State University Mississippi State University for Agriculture and Applied Science, commonly known as Mississippi State University (MSU), is a public land-grant research university adjacent to Starkville, Mississippi. It is classified among "R1: Doctoral Unive ...

jointly developed early versions (MPICH-1) as

public domain software Public-domain software is software that has been placed in the public domain, in other words, software for which there is absolutely no ownership such as copyright, trademark, or patent. Software in the public domain can be modified, distributed, ...

. The CH part of the name was derived from "Chameleon", which was a portable parallel programming library developed by William Gropp, one of the founders of MPICH. The original implementation of MPICH (sometimes called "MPICH1") implemented the MPI-1.1 standard. Starting around 2001, work began on a new code base to replace the MPICH1 code and support the MPI-2 standard. Until November 2012, this project was known as "MPICH2". As of November 2012, the MPICH2 project renamed itself to simply "MPICH". MPICH v3.0 implements the MPI-3.0 standard. MPICH v4.0 implements the MPI-4.0 standard. MPICH is one of the most popular implementations of MPI. It is used as the foundation for the vast majority of MPI implementations, including IBM MPI (for

Blue Gene Blue Gene is an IBM project aimed at designing supercomputers that can reach operating speeds in the petaFLOPS (PFLOPS) range, with low power consumption. The project created three generations of supercomputers, Blue Gene/L, Blue Gene/P, ...

), Intel MPI, Cray MPI, Microsoft MPI, Myricom MPI, OSU MVAPICH/MVAPICH2, and many others.

MPICH channels

Based on ch3 infrastructure: * Nemesis - Universal, has inter-node modules: elan, GM, IB (infiniband), MX (myrinet express), NewMadeleine, tcp; and several intra-node variants of shared memory for large messages (LMT interface). * ssm - Sockets and Shared Memory * shm - SHared memory * sock - tcp/ip sockets * sctp - experimental channel over

SCTP The Stream Control Transmission Protocol (SCTP) is a computer networking communications protocol in the transport layer of the Internet protocol suite. Originally intended for Signaling System 7 (SS7) message transport in telecommunication, the p ...

sockets

MPICH derivatives

*IBM (MPI for the

series and, as an option, for x86 and POWER clusters) *

Cray Cray Inc., a subsidiary of Hewlett Packard Enterprise, is an American supercomputer manufacturer headquartered in Seattle, Washington. It also manufactures systems for data storage and analytics. Several Cray supercomputer systems are listed ...

(MPI for all Cray platforms) *

SiCortex SiCortex was a supercomputer manufacturer founded in 2003 and headquartered in Clock Tower Place, Maynard, Massachusetts. On 27 May 2009, ''HPCwire'' reported that the company had shut down its operations, laid off most of its staff, and is seekin ...

(MPI SiCortex) *Microsoft ( MS-MPI) *Intel (Intel MPI) *Qlogic (MPICH2-PSM) *Myricom (MPICH2-MX) *

Ohio State University The Ohio State University, commonly called Ohio State or OSU, is a public land-grant research university in Columbus, Ohio. A member of the University System of Ohio, it has been ranked by major institutional rankings among the best publ ...

(MVAPICH and MVAPICH2) *ParTec (ParaStation MPI) *

University of British Columbia The University of British Columbia (UBC) is a public university, public research university with campuses near Vancouver and in Kelowna, British Columbia. Established in 1908, it is British Columbia's oldest university. The university ranks a ...

(MPICH2/SCTP, and Fine-Grain MPI (FG-MPI) which adds support for

coroutine Coroutines are computer program components that generalize subroutines for non-preemptive multitasking, by allowing execution to be suspended and resumed. Coroutines are well-suited for implementing familiar program components such as cooperative ...

References

External links

MPICH Home Pagestandards documents
{{Parallel Computing Concurrent programming libraries Free software Public-domain software with source code

History

MPICH channels

MPICH derivatives

See also

References

External links