Building high-performance clusters with LAM/MPI
Nowadays, a large number of commercial applications, especially in the areas of engineering, data mining, scientific/medical research, and oil exploration, are based on the capabilities of parallel computing. In most cases, programmers must design or customize these parallel applications to benefit from the possibilities of the parallel architecture. Message-Passing Interface (MPI) is a set of API functions that pass messages between processes (even between processes that are running on different physical servers) so a program can operate in a completely parallel fashion. MPI has now become a standard in the parallel programming world.
LAM/MPI [1] is an open source implementation of the MPI standard maintained by students and faculty at Indiana University. The LAM/MPI system has been around for 20 years, and it is considered a stable and mature tool. According to the website, LAM/MPI is now in "maintenance mode," with most of the new development work occurring instead on the alternative next-generation Open MPI implementation. However, LAM/MPI is still receiving critical patches and bug fixes, and the large install base of LAM/MPI systems around the world means that developers who specialize in parallel programming are still quite likely to encounter it.
In addition to offering the necessary libraries and files to implement the mandated MPI API functions, LAM/MPI also provides the LAM run-time environment. This run-time environment is based on a user-level daemon that provides many of the services required for MPI programs.
[...]
Buy Linux Magazine
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.

News
-
Linux Kernel 6.17 Drops bcachefs
After a clash over some late fixes and disagreements between bcachefs's lead developer and Linus Torvalds, bachefs is out.
-
ONLYOFFICE v9 Embraces AI
Like nearly all office suites on the market (except LibreOffice), ONLYOFFICE has decided to go the AI route.
-
Two Local Privilege Escalation Flaws Discovered in Linux
Qualys researchers have discovered two local privilege escalation vulnerabilities that allow hackers to gain root privileges on major Linux distributions.
-
New TUXEDO InfinityBook Pro Powered by AMD Ryzen AI 300
The TUXEDO InfinityBook Pro 14 Gen10 offers serious power that is ready for your business, development, or entertainment needs.
-
Danish Ministry of Digital Affairs Transitions to Linux
Another major organization has decided to kick Microsoft Windows and Office to the curb in favor of Linux.
-
Linux Mint 20 Reaches EOL
With Linux Mint 20 at its end of life, the time has arrived to upgrade to Linux Mint 22.
-
TuxCare Announces Support for AlmaLinux 9.2
Thanks to TuxCare, AlmaLinux 9.2 (and soon version 9.6) now enjoys years of ongoing patching and compliance.
-
Go-Based Botnet Attacking IoT Devices
Using an SSH credential brute-force attack, the Go-based PumaBot is exploiting IoT devices everywhere.
-
Plasma 6.5 Promises Better Memory Optimization
With the stable Plasma 6.4 on the horizon, KDE has a few new tricks up its sleeve for Plasma 6.5.
-
KaOS 2025.05 Officially Qt5 Free
If you're a fan of independent Linux distributions, the team behind KaOS is proud to announce the latest iteration that includes kernel 6.14 and KDE's Plasma 6.3.5.