There is something more that I can add to this. I ran the program again
today as $./misimul > kar.out &, and was checking the output from time to
time. There is another file (dumpfile) that the program writes to which
was getting populated and I know for a fact that some statements have to
get printed before that file can be written to. (There are some printf()
statements in the code that execute). dumpfile was written to, but kar.out
was of size 0 bytes. I did a tail -f on kar.out and it still showed
nothing. On closing that shell and reopening another one, I found that the
file kar.out had all the data I expected!
What do you think is happening?
Thanks,
-Karthik.
On
Tue, 13 Jun 2000, Karthik Vishwanath wrote:
> msimul is a C program. msimul.params is a text file containing initialisation
> data for the simulation (msimul). All statements are printed to screen by
> the printf() function. In the case there is no parameter specified, I
> changed the source to read a default file .msimulrc and hence it works. I
> assumed that printf prints to STDOUT. There are no parameters that
> control printing in the msimul.params (or .msimulrc).
>
> -Karthik.
>
> On Tue, 13 Jun 2000, Ray Olszewski wrote:
>
> > In the first case, do the "diagnostic messages" simply vanish or do they
> > print to the screen? (If the second, might they be printing to STDERR rather
> > than STDOUT?) Are there any settings in msimul.params that affect the
> > printing of diagnostic messages.
> >
> > If the msimul program "requires" a parameter file, in what sense does the
> > second invocation (which lacks a parameter file) "work"?
> >
> > At 12:47 PM 6/13/00 -0400, Karthik Vishwanath wrote:
> > >When I run a simulation, there are diagnostic messages printed onto the
> > >screen. The program also requires a parameter file. So mostly I run:
> > >$ ./msimul msimul.params > msimul.out and I find that the file msimul.out is
> > >empty, where msimul.params is my parameters file. What am I missing? And
> > >why does this work if I just run: $ msimul > msimul.out ?
> >
-
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