How to compile and link Fortran 90

[ucb]

Hello,

I have a Fortran 90 source code. It can be correctly compiled and linked

in Compaq Visual Fortran (Window) and Portland Group Compilers (pgf90 atlinux or unix).

NOW, I have to recompile and link it in Intel Fortran Itanium Compiler for Itanium, version 8.1. I use a similar method as pgf90, but not work:

In pgf90, I can use: pgf90 -O -o SFF SFF.for

But here: ifort -O -o SFF SFF.for Does not work

Then, I use: ifort -c SFF.for

this can generate a file SFF.o

After this, I do not know how to make this file to a .exe file. If some one could help me this, I really appreciate it. Thanks,

Greg

[TimP]

As neither the former released Compaq nor Portland compilers support Itanium, you may be using the wrong ifort. If you are to run on 32-bit Windows, you need the 32-bit compiler, with the Microsoft C++ library and link; if on EM64T or AMD64 64-bit Windows, the fce version of ifort, which is a separate download, and currently requires Microsoft PSDK build 1289. The Itanium Windows compiler also requires a PSDK to link and make .exe, but should be less critical about which build of PSDK. From the sketchy information you provided, it looks like you may not have installed the Microsoft link and library support. The compiler installer warns you about that when installing.

If you are set up correctly on Windows,
ifort SFF.for
will make
SFF.exe

[ucb]

Thanks.

I use a cluster machine. The compiler is supposed to install correctly.

I just login to the far-end computers, and transfer my source code to

there.

I compile it using the command ifort SFF.for or ifort -O SFF.for. No warn

is given. But I still can not generate the exe file.

If some one has the experience to compile the code in the cluster machine, could you help me about this. Thanks.

[Steven_L_Intel1]

This is the Linux section of the forum, so I am assuming you are on Linux? Linux executables don't tend to have a .exe file type. Generally they have no file extension at all.

If you type:

ifort SFF.for

you will get an executable named a.out - this is a Linux/UNIX convention. If you want to name it something else, the typical method would be:

ifort -o SFF SFF.for

This would create an executable named SFF

I would strongly recommend that you read the first few chapters, at least, of the Intel Fortran User Manual to get a feel for how the compiler is invoked.

[ucb]

Your explanation is clear. And I know I can generate the .out file.

But I do not know how to run it on the cluster machine. Thanks.

[TimP]

If you are compiling to run on an MPI cluster, and you have built MPI parallelization into your program, you generally use the compiler wrappers and run commands provided by that MPI implementation. For example, for Intel MPI with ifort,
mpiifort -o sff sff.for
mpiexec -n 4 ./sff
There generally aren't practical ways of making a plain Fortran program run parallel on a cluster.