Re: do ada tasks run accross 16 cpu boxs? or stuck on 1 cpu?

[Michael Erdmann <boavista@snafu.de>]

On 05/12/2013 06:35 PM, Dennis Lee Bieber wrote:
> On Sun, 12 May 2013 09:17:25 +0200, "ldries46" <bertus.dries@planet.nl>
> declaimed the following in comp.lang.ada:
>
>> I just have created my own program in which I originally did all ca;vulation
>> on one CPU. Now I created a part of the calculation in tasks running
>> paralel. On my four core systemI achieved a speed that exceded the original
>> speed by a factor of more than 3.  This meant three cores were running the
>> intensive calculation part in the tasks and one the administration around
>> the proces. (all with GNAT ADA on windows 7). The same exe file ran even
>> faster on a 4 core with hyperthreading machine of which the clock speed was
>> lower than that of the first test. I did nothing extraordinary to achieve
>> this.
>>
>
> 	I suspect you had a number cruncher application in which the intense
> code and most data all fit within each core's high-speed cache.
>
Try to bind your tasks to the CPU's and look at top (option 1). Then you 
can observe what your cpu's are doing. May be you should have a look at 
parafine :-)