Re: number of processors

[Philipp Gortan]

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Philip Willoughby wrote:
| Please could you all try this code on your platforms
| and see what happens, and in the event of it failing to work get back
to me
| with a fix for your platform:

Hi Philip + all,
your software runs nicely on my linux x86 (1 proc), sun 5.8 (4 proc's)
and sun 5.6 (2 proc's).
Anyhow, it doesn't fit nicely into autoconf, so here's my solution:

<code>

AC_MSG_CHECKING([number of processors])
AC_TRY_RUN([

# here comes your program...
# after successful checking for proc' count, save nrprocs to file:

        FILE * fd;
        fd = fopen("./conftest.nrproc", "w");
        if(!fd) {
                exit(EXIT_FAILURE);
        }
        fprintf(fd, "%ld", nprocs);
        fclose(fd);

# let your program end, here comes autoconf again

], [PROC_NR=`cat conftest.nrproc`], [PROC_NR=1])

AC_SUBST([MAKE], ["make -j $PROC_NR"])

AC_MSG_RESULT([$PROC_NR])

</code>

the file, conftest.nrproc get deleted by autoconf automagically when done.

how bout that?
cu, philipp

- --
+------------------------------------------+
|            Philipp Gortan                |
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| department | PSE KB B1                   |
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|            | Siemens AG                  |
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|            | A-1100 Vienna               |
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