[Nek5000-users] Compilation problem due to large LHIS

[nek5000-users at lists.mcs.anl.gov]

Yes... looking at the code, I see this needs to be done.

Fortunately, it is easy to parallelize.

We'll look into it...

Paul


On Mon, 9 Jan 2012, nek5000-users at lists.mcs.anl.gov wrote:

> Hi Paul,
>
> We are trying to compute the energy spectrum by transforming the fields
> onto a particular basis set. The geometry is a box of size 5 x 5 x 1 with
> 157464 elements. The code to transform onto the basis set takes in hpts.out
> as the input. The size of the transform is 640 x 640 x 128 which
> gives 52428800. So you're saying that hpts() has to be parallelized?
>
> Thanks,
>
> Mani
> On Jan 9, 2012 9:14 PM, <nek5000-users at lists.mcs.anl.gov> wrote:
>
>>
>> Mani,
>>
>> Why do you need it so large?
>>
>> Is it possible you can partition this across your processor set?
>>
>> Best regards,
>>
>> Paul
>>
>>
>> On Mon, 9 Jan 2012, nek5000-users at lists.mcs.anl.**gov<nek5000-users at lists.mcs.anl.gov>wrote:
>>
>>  Dear Nek devs,
>>>
>>> I need to put LHIS in the SIZE file to a large number (52428800), but
>>> with this number I cannot seem to compile despite any amount of increasing
>>> the processors and decreasing LELT. The maximum LP that I tried is 2048 and
>>> LELT=77.
>>>
>>> I have attached the compile log and the SIZE file. Could I get around
>>> this problem somehow?
>>>
>>> Thanks,
>>> Mani
>>>
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