Multiple processing compiling the same file
pjb at informatimago.com
Tue Jan 23 11:47:15 UTC 2018
> On 23 Jan 2018, at 12:00, Jim Newton <jnewton at lrde.epita.fr> wrote:
> If I run several sbcl processes on different nodes in my compute cluster, it might happen that two different runs notice the same file needs to be recompiled (via asdf),
> and they might try to compile it at the same time. What is the best way to prevent this?
> I see in the asdf documentation that there is an asdf:*user-cache* variable whose
> value is the path name of the directory where asdf compiles into. Would it be advisable for my to arrange so that asdf:*user-cache* is a function of the pid and hostname and perhaps thread-id (if such a thing exists) to avoid such collisions?
> Or is there some better way to handle this which is build into asdf?
I had requested that ASDF includes the hostname (or machine-instance), in the built path for the cache.
Unfortunately, for some reason, the maintainers of ASDF thought it was a good read to remove it.
There you are!
__Pascal J. Bourguignon__
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