Greetings Forum users and experts,
Forgive my seemingly simple question, I am still new at using Scalapack, and I am using it in C. I have read through many forum posts, and have looked at how to use the correct sequence for invoking ScaLapack routines,
Initialize CBlacs grid
Construct Data <- My issues (sort of)
Execute function call
When writing a program to compute QR decomposition (pdgeqrf) in C, where can I find the C interfaces to the auxiliary routines in ScaLapack. for instance, numroc_ or descinit_? Also, when constructing my data, must I use the standard scatter gather interface when using 2d block cyclic formats across multiple machines, or are those details in the invocation of the scala[ack routine?
Thanks again for all your help and patience with us new users,