Charm++ parallel programming system

[Gengbin Zheng <gzheng AT illinois.edu>]

Jim Phillips wrote:
> i,
>
> In order to build an "optimized" Charm++ application, I need to specify 
> -DCMK_OPTIMIZE on both the build command line and (I assume) in the 
> application compilation options.  Is there a reason the build script 
> couldn't just add it to conv-mach-opt.h where it would automatically get 
> picked up by any application compiling against that build?  That seems to 
> be what happens when building Tau.
>
> Thanks.
>
> -Jim
>
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What you suggested makes sense. However if this is a default behavior, 
it can be a mystery for a user that some compiler flags specified at 
build time gets always applied, so I make a new option to charmc called  
"-use-build-options". If a user knows what he is doing, he can use this 
option to apply whatever the compiler flags he specified at the time 
when running ./build.

Gengbin