[Users] Einstein Toolkit Meeting Minutes (August 11, 2014).

[Ian Hinder]

On 12 Aug 2014, at 16:06, Erik Schnetter <schnetter at cct.lsu.edu> wrote:

> On Aug 11, 2014, at 11:47 , Peter Diener <diener at cct.lsu.edu> wrote:
> 
>> Minutes from the Einstein Toolkit Meeting on August 11, 2014.
>> 
>> Present:
>> 
>> Frank, Peter, Barry, Josef, Ian, Steve, Josh, Jonah.
>> 
>> Tickets:
>> 
>>  778: PittNullCode is slow to compile. Frank is not sure what to do about
>>  it. According to Josef there is a constraint function that is slow.
>>  Josef usually does not compile this file. Ask Bela and or Roland about
>>  suggestions about what to do. Check if newer Intel compilers compiles it
>>  faster. Is it an option to remove it from ET.
> 
> If I recall correctly, then this function is written in a whole-array style. Rewriting this with explicit index operations and surrounding it by a loop should improve compile time significantly.

Roland already did this, and saw a speed improvement (see the ticket).  I believe this improvement only helped with older compilers though.  With 14.0.0, the file still takes 20 minutes to compile. 

-- 
Ian Hinder
http://numrel.aei.mpg.de/people/hinder

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