O'Reilly logo

IBM System Blue Gene Solution Blue Gene/Q Application Development by Megan Gilge

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Mapping
This appendix provides an overview of the mapping of tasks for the Blue Gene/Q system.
Mapping overview
Mapping is defined as the assignment of processes to Blue Gene processors. The term MPI rank denotes a process, but the concept applies whether MPI or some other communication protocol is used. The network topology for Blue Gene/Q is a five-dimensional (5D) torus or mesh, with direct links between the nearest neighbors in the ±A, ±B, ±C, ±D, and ±E directions. When communication involves the nearest neighbors on the torus network, a large ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required