[Insight-developers] Not Really Parallel Build

[Bill Hoffman]

Kevin H. Hobbs wrote:
> On 11/11/2009 12:12 PM, Luis Ibanez wrote:
>> Is this correct ?
>>
> 
> Yes, though I'll reshuffle it a bit :
> 
> computer gmake-opt ctest-option build-time test-time cmake
> ----------------------------------------------------------
>  bubbles none      -j8          110.5      33.4      CVS
>  kitty   -j16      none         12.6       7.3       2.4
>  candy   -j16      none         12.6       7.4       2.4
>  bambi   -j16      none         12.6       7.4       2.4
> 
> 
>> before we start speculating
>> on the possible explanations  :-)
>>
> 
> If it would be useful I could set up :
> 
> computer gmake-opt ctest-option build-time test-time cmake
> ----------------------------------------------------------
> bubbles  -j16      none         12         7         2.4
> kitty    -j16      none         12         7         2.4
> candy    -j16      none         12         7         2.4
> bambi    -j16      none         12         7         2.4
> bubbles  none      -j2          ?          ?         CVS
> kitty    none      -j4          ?          ?         CVS
> candy    none      -j8          ?          ?         CVS
> bambi    none      -j16         ?          ?         CVS
> 
> Subject to a few restrictions from things that need to be the same on
> these machines it's possible to set up other experiments as well.
> 

ctest -j N only affects the running of tests.  If you want the build to 
be parallel you still have to set the make options in the cmake cache.

-Bill