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Actual Origin 2000 machine at UWM |
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Computer Facilities Parallel Computer
This machine is part of
Dexuan Xie's Computing Lab
The SGI Origin 2000 at Dr. Xie's Lab is a distributed shared memory
multiprocessor system, which contains sixteen MIPS R12000 400MHz
processors, 8 Gbytes of main memory and 180 Gbytes of SCSI hard
disk memory. In addition, each processor has 4 MB Cache as
secondary memory. It contains all major compiling, performance-analysis, and
debugging tools for developing high performance algorithms and carrying
out scientific simulations.
FORTRAN 77, Fortran 90, C, and C++ are supported on the Origin 2000. The Origin 2000 can automatically optimize sequential programs for
shared-memory parallel execution using the POWER FORTRAN Accelerator (pfa)
and the Power C Anaylzer (pca). In addition to automatic parallelization, the C, FORTRAN 77, and Fortran 90
compilers understand many directives that give the programmer more control over
parallelism. The FORTRAN 77 and Fortran 90 compilers also understand the OpenMP
set of directives. For more information on shared-memory parallel programming,
see man pfa, man pca, man mp, or the "Documentation"
section. The Origin 2000 has SGI's optimized implementation of the Message Passing
Interface (MPI). MPI is a standard library for performing parallel processing
using a distributed-memory model. The graphical debugger on the Origin 2000, cvd, allows runtime
interactive debugging of sequential or shared-memory parallel programs. An
X-Windows interface is provided. |
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Last Updated: August 15, 2003
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