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Arden Thomas

[vwnc] Mutli Core Experiments all posted

I mentioned earlier that I was blogging a short series about the first set of mutli core experiments I completed.

All the posts and wrap up are now posted.

Feedback welcome. Thanks!

Arden Thomas

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Cincom Smalltalk Product Manager

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Thorsten.Seitz

[vwnc] Mutli Core Experiments -- what about failures?

Hi Arden,

what happens in case of failures?

I'd expect exceptions to be cleaned up and propagated to the corresponding
Promise, but I'm not sure whether other kinds of failures have to be
considered: Is it possible to have communication problems (broken pipes)?
What about a VM crash of a drone? Are these somehow detected and propagated
to all affected Promises, too?

-Thorsten

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I mentioned earlier that I was blogging a short series about the first set
of mutli core experiments I completed.

All the posts and wrap up are now posted.

Feedback welcome. Thanks!

Arden Thomas
[hidden email]
Cincom Smalltalk Product Manager
_______________________________________________
vwnc mailing list
[hidden email]
http://lists.cs.uiuc.edu/mailman/listinfo/vwnc

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Michael Lucas-Smith-2

Re: [vwnc] Mutli Core Experiments -- what about failures?

[hidden email] wrote:

> Hi Arden,
>
> what happens in case of failures?
>
> I'd expect exceptions to be cleaned up and propagated to the corresponding
> Promise, but I'm not sure whether other kinds of failures have to be
> considered: Is it possible to have communication problems (broken pipes)?
> What about a VM crash of a drone? Are these somehow detected and propagated
> to all affected Promises, too?
>
>

It's worth noting that the API that Arden was using was his own
additions on top of the facility myself and MK provided to him. Having
said that, exceptions that happen in the drone do come back to the
master and are reraised there.

I'm not sure about robustness wrt to communications errors, they may be
raised in a different green thread instead of the threads that are
waiting for a response... I'd have to check, that's a useful test case.

Cheers,
Michael
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