[Omp] A problem with guard objects and exceptions on Intel

[Dieter an Mey]

Micheal,

try something in between small and unlimited.
I had such a case as well.

Dieter

Michael Suess schrieb:
> On Wednesday 23 August 2006 01:38, Micah Elliott wrote:
>> On 2006-08-22 Michael Suess wrote:
>>> I have just published a blog entry comparing the merits of
>>> guard objects vs. the critical construct (with C++ and OpenMP).
>>> The problem I have now is: My test programs with exceptions and
>>> guard objects do not work for the Intel Compiler. Since this
>>> would not be the first time I missed something, I figured I
>>> would double check here before filing a bug with Intel.
>>>
>>> So if you find the time, please take a look at the code for the
>>> guard object, enclosed in the following article:
>>> http://www.thinkingparallel.com/2006/08/21/scoped-locking-vs-critical-in-
>>> openmp-a-personal-shootout/
>> I didn't take much time in looking at the code, but I did compile
>> what I found on the site with icpc, and saw that you'll get the
>> SEGV if you don't increase your stack limit (e.g., "ulimit -s
>> unlimited" in bash).
> 
> Hi Micah,
> 
> your advice does not seem to help:
> 
> $ ulimit -s unlimited
> 
> $ ulimit -s
> unlimited
> 
> $ icpc test_omp_guard_exceptions.cpp -o test_omp_guard_exceptions 
> omp_guard.cpp -openmp
> test_omp_guard_exceptions.cpp(18) : (col. 2) remark: OpenMP DEFINED REGION WAS 
> PARALLELIZED.
> 
> $ ./test_omp_guard_exceptions
> Segmentation fault
> 
> I am curious, though: Why do you think the stack size is too small? I am not 
> using much stack space in my program, as far as I can see...
> 
> Thanks anyways,
> Michael
> 


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Dieter an Mey
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