
Appendix B. Glossary 113
Appendix B
Glossary
ANSI American National Standards Institute, organization
deciding on the U.S. computer science standards.
Bandwidth The amount of data that can be sent through a given
communications circuit per second.
BLACS Basic Linear Algebra Communication Subroutines,a
subroutine package for interprocess communication
in PBLAS and ScaLAPACK.
BLAS Basic Linear Algebra Subroutines, a subroutine pack-
age for fundamental linear algebra operations.
Cache A small fast memory holding recently accessed data,
designed to speed up subsequent access to the same
data.
CSC Center for Scientific Computing, a national service
center that specializes in a scientific computing and
data communications.
Data-parallel A SIMD programming style where the programmer
specifies the data distribution between processes, and
the compiler generates a parallel executable code.
Data passing A communication technique between parallel pro-
cesses where the routines for sending or receiving
data are performed by only one of the processes.
Emacs A popular screen editor used on Unix, VMS and other
systems.
FUNET Finnish University and Research Network, maintained
by CSC.
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