Parallelizing Dense Linear Algebra Operations with Task Queues in

llc is a language based on C where parallelism is expressed using compiler directives. The llc compiler produces MPI code which can be ported to both shared and distributed memory systems. In this work we focus our attention in the llc implementation of the Workqueuing Model. This model is an extension of the OpenMP standard that allows an elegant implementation of irregular parallelism. We evaluate our approach by comparing the OpenMP and llc parallelizations of the symmetric rank-k update operation on shared and distributed memory parallel platforms. Keywords MPI, OpenMP, Workqueuing, cluster computing, distributed memory.

• Type: Conference
• Year: 2007
• Where: PVM
• Authors: Antonio J. Dorta, José M. Badía, Enrique S. Quintana-Ortí, Francisco de Sande
• Keywords: Compiler Produces Mpi, Distributed Memory, OpenMP, PVM 2007