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Iowa State University has a 64 machine cluster (ALICE) made up of Pentium Pro machines. As far as I know, those machines are dual processor machines (If that is what you mean by dual processor boxes). MPICH is installed on that cluster and they also have PGI Fortran90 available.. I did try out Lahey Fujitsu Fortran on it for evaluation and it worked fine and faster than PGF90. The machines are interconnected through 100mbits/s fast ethernet cards. I got very good scaling out of the cluster but most of it comes from algorithm though. One thing I heard from the ALICE people is that they had some stability problems when both processors were put into service. They preferred using kernels utilizing only one processor out of the two processors on the machines. Alexei Matveev wrote: > Dear Colleagues, > > Does anybody have experience in > running (compiling) f90/MPI programs > on Linux cluster of _DUAL_ boxes. > Is LAM/MPI distributed with SuSE 6.1 an appropriate > choice? Particularly for running two processes > on one box? Any other choices? > We would appreciate any comments on that matter. > > Thanks in anticipation, > Walter Alsheimer, Alexei Matveev -- Feyzi INANC Iowa State University, Center for Nondestructive Evaluation Applied Sciences Complex II, 1915 Scholl Road, Ames IA 50011 Ph. (515) 294 9738 Fax. (515) 294 7771 E-Mail. [log in to unmask] http://www.cnde.iastate.edu %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%