At the very least, if I know to set the --enable-timer-type option, will it be passed on to the child configure scripts if I pass it to the top-level configure invocation?

Yes, configure options get propagated to the child scripts. That's part of the difficulty I think, because printing help information and doing option checking at the parent is difficult because the option might only be relevant for some descendant configure script. --Halim On 4/7/16 5:24 PM, Jeff Hammond wrote:

Thanks. I don't know the answer, but I thought there was a standard method for implementing this. If the MPICH team doesn't know if, then I am certainly no help, since essentially all of my build systems and knowledge thereof are derived from MPICH :-)

At the very least, if I know to set the --enable-timer-type option, will it be passed on to the child configure scripts if I pass it to the top-level configure invocation?

Jeff

On Thu, Apr 7, 2016 at 2:28 PM, Balaji, Pavan <[email protected] <mailto:[email protected]>> wrote:

It is convenient to have all the help output be present in the top-level configure. We need to figure out how to make that happen while still allowing multiple independent packages inside MPICH. We don't have a good solution for that yet, but we are open to suggestions.

-- Pavan

> On Apr 7, 2016, at 3:24 PM, Jeff Hammond <[email protected] <mailto:[email protected]>> wrote: > > I recall that the base configure script used to emit the help associated with --enable-timer-type. It no longer does so, although the option is still present in src/mpl/configure. > > Do I have a reasonable expectation of seeing --help output for all options in the base configure, or am I expected to run --help against every configure in the tree? > > Thanks, > > Jeff > > jrhammon-mac01:git jrhammon$ ./configure --help | grep time > runtime - error checking controllable at runtime through environment > runtime - Runtime control of data collected > runtime - Alias to "multiple" > --enable-mutex-timing calculate the time spent waiting on mutexes > speeds up one-time build > sometimes confusing) to the casual installer > User-defined run-time library search path. > jrhammon-mac01:git jrhammon$ ./src/mpl/configure --help | grep time > speeds up one-time build > --enable-timer-type=name - Select the timer to use for MPI_Wtime and > internal timestamps. > gethrtime - Solaris timer (Solaris systems only) > clock_gettime - Posix timer (where available) > gettimeofday - Most Unix systems > linux86_cycle - Linux x86; returns cycle counts, not time in seconds* > gcc_ia64_cycle - IPF ar.itc timer* > mach_absolute_time - Mach absolute time (alternative to clock_gettime > device - The timer is provided by the device > *Note that the cycle timers are intended to be used by > User-defined run-time library search path. > > > -- > Jeff Hammond > [email protected] <mailto:[email protected]> > http://jeffhammond.github.io/ > _______________________________________________ > To manage subscription options or unsubscribe: > https://lists.mpich.org/mailman/listinfo/devel

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-- Jeff Hammond [email protected] <mailto:[email protected]> http://jeffhammond.github.io/

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