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hi,
I am trying to call a C++ function in FORTRAN subroutine. This C+ function is supposed to update an integer array. Here is a non-working code I wrote. Can someone please let me know what the issue is:
! FORTRAN function that calls a C++ function
subroutine my_function()
integer(4) ar(*)
…
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Hi folks,
Summing up, my problem consists on compiling g95 objects inside a C++ application.
Actually, I'm constructing an interface for an old fortran program.
For this task, I'm using the wxWidgets GUI library, and calling fortran subroutines when necessary.
At the beginning, I was developing the…
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I'm going through a Fortran code, and one bit has me a little puzzled.
There is a subroutine, say
SUBROUTINE SSUB(X,...)
REAL*8 X(0:N1,1:N2,0:N3-1),...
...
RETURN
END
Which is called in another subroutine by:
CALL SSUB(W(0,1,0,1),...)
where W is a 'working array'. It appears that a specific…
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I have an issue in fortran 90.
I have a user defined type and when I call one of the MPI subroutines the data looks to be passed by values (not address, as I thought it should). The output arguments aren't modified. It seems to be specific to the MPI calls I tried the same thing in a simple test…
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In my fortran code I made the following call to dnrm2 routine
d = dnrm2(n, ax, 1)
Just a simple call that would return me a double precision result.
The problem is whether I should declare the function at the start of my script. I found that if I don't declare it, and when I compile the code in…
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I have a program, written in fortran90, previously successfully compiled on a compaq compiler and working, that I'm now trying to compile with gfortran. I can compile the code to an .exe and run it. It works fine until a certain point in the routine and then an error is thrown.
My current configuration:
Windows…
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I have an issue in fortran 90.
I have a user defined type and when I call one of the MPI subroutines the data looks to be passed by values (not address, as I thought it should). The output arguments aren't modified. It seems to be specific to the MPI calls I tried the same thing in a simple test…
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What is the best way to scatter a Fortran 90 matrix by its rows rather than columns? That is, let's say I have a matrix a(4,50) and I want to MPI_SCATTER it onto two processes where each part is alocal(2,50), where rank 0 has rows 1 and 2, and rank 1 has 3 and 4. Now, in C, this is simple since arrays…
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I've read it's entry in the language reference (Intel's), but I cannot quite grasp what it does. Could someone in layman's terms explain it to me, what it means when it is included in a module ?
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I'm trying to solve a simple problem with MPI, my implementation is MPICH2 and my code is in fortran. I have used the blocking send and receive, the idea is so simple but when I run it it crashes!!! I have absolutely no idea what is wrong? can anyone make quote on this issue please? there is a piece…
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