Quick References Guides are provided for ScaLAPACK, the PBLAS, and the BLACS. In addition, quick reference guides are also available for LAPACK and the BLAS.
http://www.netlib.org/scalapack/scalapackqref.ps
http://www.netlib.org/scalapack/pblasqref.ps
http://www.netlib.org/blacs/cblacsqref.ps
http://www.netlib.org/blacs/f77blacsqref.ps
http://www.netlib.org/blas/blasqr.ps