Hello, A colleague of mine asked me about quad precision support in blas/lapack libraries. Naturally I said just use petsc... however he couldn't be convinced.
I thought that the f2cblaslapack source which petsc's configure downloaded and compiled would be identical to that found at Netlib. However, a quick inspection of both source codes reveals that this is not the case. I asked Matt and he told me that he thought Satish generated the particular source which petsc is fetching when --download-f2cblaslapack is invoked. I was wondering (i) how was the quad precision source actually generated and (ii) how extensively tested is that source code when used for quad precision arithmetic? Cheers, Dave
