[ITK-dev] [ITK] Thread Pool patch

[Miller, James V (GE Global Research)]

On Apr 4, 2014, at 12:55 PM, Bradley Lowekamp <blowekamp at mail.nih.gov<mailto:blowekamp at mail.nih.gov>> wrote:

Hello,

Thanks for working on this patch. I think it will be a good improvement to ITK.

What I think should happen is that we should be being with a little design review and interface design. Perhaps getting some of this information down on a wiki page?


Umang has a document describing the architecture.  We will get this posted.



Based on what I have seen this patch is going to need a bit of work to get it ready for prime time ITK. I tried is out on my system and when I began testing it, too many threads were spawn and the OS killed all my processes. Then when I ran just one test at a time there were segmentation faults too.


"Too many threads" is a bit odd.  Umang does initialize the pool with a set of threads, then adds threads as needed. I believe the thread initialization is based on the number of cores.  But in principle, the initialization could be as low as 0 or 1 threads.

Was this on one of your giant core machines?

Jim

Brad

On Apr 4, 2014, at 10:42 AM, Brahmakshatriya, Umang (GE Global Research) <brahmaks at ge.com<mailto:brahmaks at ge.com>> wrote:

Hi All,

My name is Umang, I am working to submit the Thread Pool patch. Can anyone help me through the final steps of submitting it? I had a few issues creating the patches.
I am available next week at these times:
Tuesday 4/8 – 2.30p to 5p EST
Wednesday 4/9 -  9.30am to 12p EST
Thursday 4/10 - 2.30p to 5p EST

Let me know which time works best and I will setup a t-con and webex / google hangout.



Umang Brahmakshatriya
Advanced Computing Lab
GE Global Research
1 Research Circle K1-3A37C
Niskayuna, NY 12309

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