High performance computers from
HECATE: Origin 2000
- 4-rack Origin 2000 system
- 64 CPUs: 300 MHz R12000 processors
- 16 GBytes main memory (RAM)
- 1.3 TeraBytes disk space
- Hecate is shared among users in Departments of Astrophysics, Computer Sciences and Princeton Plasma Physics Lab
- Questions about hecate may be sent to bill@princeton.edu
Performance Tuning for Origin 2000
Compiler options for maximum performance:
- -64 -mips4 -r12000 -TARG:platform=ip27
optimization for the Origin 2000 architecture
- -Ofast=ip27
maximum optimization level for Origin 2000
- -OPT:IEEE_arithmetic=3 -OPT:roundoff=3
speeds up arithmetic when round-off errors are not important
(check that results are the same)
- -OPT:alias=disjoint
- -IPA=on
cross-subroutine optimization
- -LNO:vintr=on
automatic vectorization
Linker options:
- -lfastm
fast math functions
Parallel Programming Tutorials
Supercomputer Links
MPI (Message Passing Interface) links:
FORTRAN related sites:
|