[comp.sys.dec] f77 on DECstation 5000

kk881595@longs.LANCE.ColoState.EDU (kevin knappmiller) (11/14/90)

Does anyone have any recommendations of a good FORTRAN compiler for a
DECstation 5000?
We currently have the f77 supplied by DEC, which is not `good'.

My main use is a 3-D finite difference model.  When run on a Silicon Graphics
Personal Iris with the same MIPS CPU running at 20MHz instead of 25MHz the code
still runs 30% faster than the best I can get from the compiler DEC
sells when running
on the 5000.

Using a test 400x400 matrix multiply the C compiler generates code
which runs 3 times faster than the code f77 generates.
(They both have the optimum loop ordering for the respective languages)

kevin