[Scons-users] CudaTool

[William Blevins]

David,

All in all, it seems that may have been a question more appropriate for the
SCons CUDA tool developer, but looking at
https://bitbucket.org/scons/scons/wiki/CudaTool notes section, it appears
that those files are only added to the Emitter so that scons -c works for
those files.

Bill,

Can the CUDA emitter simply call Clean( 'item.linkinfo' ) in the emitter to
explicitly without needing to return the item itself?  I assume this would
work, and it would simply that Builder if no one uses the "*.linkinfo"
file.  If you think this will, I will contact the developer.

V/R,
William


On Tue, Jun 16, 2015 at 11:00 AM, Bill Deegan <bill at baddogconsulting.com>
wrote:

> William,
>
> Thanks for the assist, you are correct in your corrections.
>
> Good question about the purpose of the .linkinfo. (They are added in the
> cuda tool..)
> I did take a course on cuda programming a while back and I"m thinking
> these are used to link the native code to code which will run on the GPU
> hardware.
> So while they (I believe) aren't needed in the .a they are used by other
> tools in the tool chain.
>
> -Bill
>
> On Tue, Jun 16, 2015 at 7:56 AM, William Blevins <wblevins001 at gmail.com>
> wrote:
>
>>
>> On Tue, Jun 16, 2015 at 10:29 AM, Bill Deegan <bill at baddogconsulting.com>
>> wrote:
>>
>>> David,
>>>
>>> How about:
>>>
>>> foo = env.StaticObject(“foo.cu”,<foo-options>)
>>> bar = env.StaticObject(“bar.cu”,<bar-options>)
>>>
>>> foo_objects = [ x for x in foo if x.str().endswith('.o') ]
>>> bar_objects = [ x for x in bar if x.str().endswith('.o') ]
>>>
>>>
>>> env.StaticLibrary(libname, [foo, bar]
>>>
>>
>> I think the about line needs to be env.StaticLibrary(libname,
>> [foo_objects, bar_objects] though right?
>>
>>
>>> [Also note your example you added bar-options to env1 instead of env2]
>>> I didn't try the code above but that's the general way I'd go about it.
>>> Remember that all builders return list of nodes.
>>>
>>> -Bill
>>>
>>
>> Thanks Bill.
>>
>> I wasn't 100% sure I understood his question, but even though we have
>> given him a workaround I think we have sidestepped a more important
>> question.
>>
>> What are *.linkinfo used for, and if they aren't being used why are they
>> being created?  Are linkinfo specific to certain toolchains?
>>
>> V/R,
>> William
>>
>>
>>>
>>> On Tue, Jun 16, 2015 at 5:31 AM, David Wade <DAWAD at statoil.com> wrote:
>>>
>>>>  Hi,
>>>>
>>>>
>>>>
>>>> I have been using this nifty bit of python for some time:
>>>> https://bitbucket.org/scons/scons/wiki/CudaTool
>>>>
>>>> Just ran into an issue of finding scons was trying to run “ar rc foo.o
>>>> foo.linkinfo bar.o bar.linkinfo” when I tried this:
>>>>
>>>>
>>>>
>>>> env1 = env.Clone()
>>>>
>>>> env2 = env.Clone()
>>>>
>>>>
>>>>
>>>> env1.Append(<foo-options>)
>>>>
>>>> foo = env1.StaticObject(“foo.cu”)
>>>>
>>>> env1.Append(<bar-options>)
>>>>
>>>> bar = env2.StaticObject(“bar.cu”)
>>>>
>>>>
>>>>
>>>> env.StaticLibrary(libname, [foo, bar])
>>>>
>>>>
>>>>
>>>> My workaround has been to comment out references to the “Emitter”
>>>> functions in cuda.py … but is this the best thing to do?
>>>>
>>>>
>>>>
>>>> Many thanks!
>>>>
>>>>
>>>> *David Wade*
>>>> Senior Analyst, Seismic Imaging Development
>>>> *ITV SUB RH / HPC Development Team, *Statoil ASA
>>>>
>>>> *Phone*: +47 97572157
>>>> *Email*: *dawad at statoil.com <dawad at statoil.com>*
>>>> *Visitor address*: Vassbotnen 23, Forus, Norway
>>>>
>>>>
>>>> Incorporation number: NO 923 609 016 MVA
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>>>> Please consider the environment before printing this e-mail.
>>>>
>>>>
>>>>
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