Where can I find BLAS and SCALAPACK on Cray systems?

BLAS and SCALAPACK functions are provided by the cray-libsci module, that is loaded by default on Cray systems.

The following commands will give you some information on the module cray-libsci :

module show cray-libsci

module help cray-libsci

Please note that the Cray wrappers will automatically adjust the include and library path when cray-libsci  is loaded.

If you use the flag -craype-verbose when compiling with the wrapper, you will see a verbose list of all the include and library paths called by the compiler driver.