The Principle of Implementation of ID-Less Communication in BLACS Based on MPI
Yuqing Xiong · Microelectronics & Computer · 2009
BLACS,which is based on MPI or PVM,is a communication library for linear algebra computing on distributed memory parallel computing systems. ID-less communication is one of features of the BLACS. ID-less communication means that the passed messages don’t carry message IDs in during communication. ID-less communication is important to add the programmability of the BLACS and improve quality of parallel applications. The point to point communication and broadcast in the BLACS based on MPI are taken as examples to analyze the principle of ID-less communication in this paper.