I started the test program in a cygwin (unix/linux emulator) window and the
command "ls -l" gives the long listing of the files/directories. I had
already tried "test = system('dir')" from within a dos (cmd) window and
while no error messages were generated, the dos command 'dir' was not
performed.
Thanks,
Ben
-----Original Message-----
From: Fortran 90 List [mailto:[log in to unmask]] On Behalf Of
Colin Watters
Sent: Thursday, December 29, 2005 8:35 AM
To: [log in to unmask]
Subject: Re: spawing other jobs from within F90 code
How do you know it works?
Sounds like your opsys is Windows. Last time I looked, the command "ls -l"
in a windows command prompt gave "bad command or filename" or words to that
effect. Maybe your subsequent "MS windows-generated error message" is this.
You could try
test = system('dir')
Qolin
Email: my qname at domain
Domain: qomputing dot demon dot co dot uk
----- Original Message -----
From: "Ben Blackwell" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, December 29, 2005 2:24 PM
Subject: Re: spawing other jobs from within F90 code
The good news is than Dan Nagle's suggestion of system() works for the
Absoft compiler. I found the following two lines of code in some Absoft
documentation:
integer*4 test,system
test = system('ls -l')
and it works.
The bad news is that the code containing the above two lines dies
non-gracefully after the system call 'ls -l' is executed. You get a MS
windows generated error message "abc.exe has encountered a problem and needs
to close". Is there some other call that returns control back to the fortran
code?
Thanks,
Ben
-----Original Message-----
From: Fortran 90 List [mailto:[log in to unmask]] On Behalf Of
Dan Nagle
Sent: Monday, December 26, 2005 5:37 PM
To: [log in to unmask]
Subject: Re: spawing other jobs from within F90 code
Hello,
Try system(), or runqq() depending upon your processor.
Ben Blackwell wrote:
> I did NOT mean "spawn" in the parallel programming sense. I want to have
the
> function evaluation portion of the optimization to come from a stand alone
> code as opposed to a subroutine of the optimization code. What name do the
> system intrinsics go by?
> Thanks,
> Ben
>
> -----Original Message-----
> From: Fortran 90 List [mailto:[log in to unmask]] On Behalf Of
> Aleksandar Donev
> Sent: Monday, December 26, 2005 3:00 PM
> To: [log in to unmask]
> Subject: Re: spawing other jobs from within F90 code
>
> Ben Blackwell wrote:
>
>>Is there a way to spawn jobs (run finite element code) from within
>>the F90 optimization code?
>
> You should probably not use "spawn" unless you are talking about
> parallel programming (spawning threads or such). Do you just mean "run"
> an external program and then wait untill it finished and read the
> results it wrote? In which case the answer is that there is no strictly
> standard-conforming way to do it in F90, but most compilers offer some
> kind of "system" intrinsic which allows running an external program. It
> will be part of the next revision of Fortran, although I don't remember
> what spelling we decided on...
> Best,
> Aleks
>
--
Cheers!
Dan Nagle
Purple Sage Computing Solutions, Inc.
