Slide 3 of 8

LIBCSMATH

• Level 1, 2, and 3 BLAS. 1D FFTs

• /usr/lib/libcsmath_r.a, /usr/lib/libcsmath_cop.a, /usr/lib/libcsmath.a

  • _r: Tries to split the BLAS/FFTs for you using the compiler
  • _cop: Tries to split the BLAS/FFTs for you using “cop”
  • All versions reentrant except on some level-2,level-3 complex BLAS
  • If you do your own parallelism, you will want to explicitly use libcsmath.a.
  • The official C interface to the BLAS is included.

• Linking with -mp or -Mconcur automatically gives you _r.a.

• Dual processor versions are enabled with -proc 2 on the yod line

• $TFLOP_XDEV/tflops/lib

• See the release notes and upcoming man pages (R2.8)

• Works with OSF and Cougar

• http://www.cs.utk.edu/~ghenry/distrib

  • Can find a linux version here (around 16000 licenses.)

• Other interesting kernels:

  • copsync() ; xdgemm() ; transposition routines

Acknowledgement and Disclaimer