HP-MPI User's Guide (11th Edition)

Glossary
task
Glossary316
task Uniquely addressable thread of
execution.
thread Smallest notion of execution in a
process. All MPI processes have one or more
threads. Multithreaded processes have one
address space but each process thread
contains its own counter, registers, and
stack. This allows rapid context switching
because threads require little or no memory
management.
thread-compliant An implementation
where an MPI process may be
multithreaded. If it is, each thread can issue
MPI calls. However, the threads themselves
are not separately addressable.
trace Information collected during program
execution that you can use to analyze your
application. You can collect trace information
and store it in a file for later use or analyze it
directly when running your application
interactively.
UNC A Universal Naming Convention
(UNC) path is a path that is visible as a
network share on all nodes. The basic format
is \\node-name\exported-share-folder
\paths. UNC paths are usually required
because mapped drives may not be
consistent from node to node, and many
times don’t get established for all logon
tokens.
yield See spin-yield.