New tinderbox.
Dan Nicholson
dbn.lists at gmail.com
Thu Feb 28 09:54:11 PST 2008
On Thu, Feb 28, 2008 at 8:50 AM, Chris Ball <cjb at laptop.org> wrote:
>
> ¹: Which is odd, because that machine is a Niagara T1 with 32 cores;
> looking at the time taken for each stage, the reason that it's
> slower than an average x86 box seems to be that configure doesn't
> parallelize at all, and each core individually is quite slow. Once
> it actually gets into compiling with make -j64, it's very fast.
> Configure-time dominates compile-time, though.
You could attempt to use a global config.cache with some of common
long running values cached. Run ./configure -C and examine the
resulting config.cache for interesting things to cache (F77?). Then
configure with --cache-file=<file>. This can result in weird failures,
though, if the configure script also plays with these variables. But
you could probably find a pretty minimal set of cached values that
would result in a nice speedup.
--
Dan
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