Why Would You Use an Portland Group Compiler
The Portland Group compilers are production quality, high performance optimizing compilers. They provide extensive documentation and tools. They are not recommended for new programs on Princeton clusters.
A reason for chosing an Portland Group compiler would be that the application under consideration was developed with an Portland Group compiler.
Princeton has a current license. The compilers are installed on an as-requested basis onto cluster head nodes.
The Portland Group compilers accept the standard ISO / ANSI languages with some extensions.
To compile a C source program named test.c into an executable program named test, use
pgcc -o test test.c
To compile a C source program named gravity.c into an object file to be linked later, use
pgcc -c gravity.c
To combine the C object files, main.o, tensor.o, matrix.o and vector.o into an executable program called algebra, use
pgcc -o algebra main.o tensor.o matrix.o vector.o
Similarly, for a C++ program, use
pgCC -o test test.cxx
pgCC -c gravity.cxx
pgCC -o algebra main.o tensor.o matrix.o vector.o
For a Fortran program, one might use
pgfortran -o test test.f
pgfortran -c gravity.f
pgfortran -o algebra main.o tensor.o matrix.o vector.o
Programs written in Fortran 90 should be named ending with ".f90", rather than ".f"
The main tool used to debug Portland Group compiler suite programs is the Gnu debugger, gdb. Allinea's commercial debugger, DDT, is available on many of the clusters. Usage instructions for DDT can be found here.