... communication partners in the form source/dest are given in this
order. For example, for the process with rank=5,itiscoords[1]=1, and there-
fore source=9 (lower neighbor in dimension 0) and dest=1 (upper ... and source for each pro-
cess. These are then used as parameters for MPI
Sendrecv(). The following
diagram illustrates the exchange. For each process, its rank, its Carte...
... separate thread
available for execution. Therefore, the application program must apply parallel pro-
gramming techniques to get performance improvements for SMT processors.
2.4.2 MulticoreProcessors
According ... be used for the
transmission and the switching strategy which determines whether and how mes-
sages are cut into pieces, how a routing path is assigned to a message, and...
... Language bindings for C, C++, Fortran-77, and Fortran-95 are sup-
ported. In the following, we concentrate on the interface for C and describe the
most important features. For a detailed description, ... product and a matrix–vector multiplication and
derive the formula for the running time on a mesh topology.
Exercise 4.14 Develop a runtime function to capture the execution ti...