I just tried that and it has no effect...
Somehow, the Compute is not being executed, even though
its input is clearly changing. If I change
Compute's output to no caching, it forces execution,
but that shouldn't be necessary, if I'm
understanding things correctly.
Joel
>
> Have you tried setting the output of getTime to cache "No results".
> I'm betting that Compute is seeing getTime as not changing so it
> cache's the input value.
>
> David
>
> >I have written a small inboard module, getTime, that returns the
> >current system clock, using the gettimeofday() call. The module
> >is marked as having side effects, so it is called on
> >every execution, as expected.
> >
> >The problem is the downstream Compute. I want to use the
> >time of day as a random number seed. Even though the
> >time value is changing, the Compute is *not* being reexecuted,
> >so I'm getting the same random numbers every time.
> >
> >The following also shows the problem. In this net, the first value
> >printed by Echo changes each time, but the second remains fixed.
> >
> > [getTime]
> > |
> > +--+-+
> > | |
> > | [Compute("a")]
> > | |
> > [Echo]
> >
> >I can force the Compute to execute by setting the output caching
> >to "No results", but I thought that wouldn't be necessary here?
> >
> >I have verified this behavior in verions 4.3.2 and 4.2.0, both
> >on Solaris 8.
> >
> >Am I missing something?
> >
> >Thanks,
> >Joel
> >
> >===============================================================
> >Joel Richardson, Ph.D. [EMAIL PROTECTED]
> >The Jackson Laboratory Phone: (207) 288-6435
> >600 Main Street Fax: (207) 288-6132
> >Bar Harbor, Maine 04609 URL: www.informatics.jax.org
> >===============================================================
>
>
> --
> .............................................................................
> David L. Thompson Visualization and Imagery Solutions, Inc.
> mailto:[EMAIL PROTECTED] 5515 Skyway Drive, Missoula, MT 59804
> Phone : (406)756-7472
===============================================================
Joel Richardson, Ph.D. [EMAIL PROTECTED]
The Jackson Laboratory Phone: (207) 288-6435
600 Main Street Fax: (207) 288-6132
Bar Harbor, Maine 04609 URL: www.informatics.jax.org
===============================================================
