Yes I was responding to comment 3. I am curious, does the longer form signature "-gencode arch=compute_20,code=sm_20 -gencode arch=compute_20,code=compute_20" work correctly? CMake has to parse the gencode flags and move them to special msbuild entries, and I wonder if there is a bug when parsing multiple code options.
On Wed, Sep 6, 2017 at 10:36 AM, Mueller-Roemer, Johannes Sebastian < johannes.sebastian.mueller-roe...@igd.fraunhofer.de> wrote: > If the comment is wrt 3., the result is the same no matter if I use a > space or an equals sign, if I double escape the quotes (e.g., use the value > as you wrote it in the cmake-gui for CMAKE_CUDA_FLAGS), the value in VS > becomes compute_20,"sm_20,compute_20" instead of > compute_20,sm_20,compute_20, which is equally illegal and will cause the > same error message, also double escaping should not be necessary for a > subset of flags (Xcompiler works fine without it, even if the default > values are pointless). > > If the comment is wrt 2., this is the line automatically generated by > CMake/VS when not passing in any gencode flags explicitly. > > > > Or am I misunderstanding what you mean? > > > > Fraunhofer-Institut für Graphische Datenverarbeitung IGD > > Fraunhoferstr. 5 | 64283 Darmstadt | Germany > > Tel +49 6151 155-606 <+49%206151%20155606> | Fax +49 6151 155-139 > <+49%206151%20155139> > > johannes.mueller-roe...@igd.fraunhofer.de | www.igd.fraunhofer.de > > > > *From:* Robert Maynard [mailto:robert.mayn...@kitware.com] > *Sent:* Wednesday, September 6, 2017 15:38 > *To:* Mueller-Roemer, Johannes Sebastian <Johannes.Sebastian.Mueller- > roe...@igd.fraunhofer.de> > *Cc:* cmake@cmake.org > *Subject:* Re: [CMake] CMake 3.9.x Visual Studio CUDA PDB/compiler flags > issues > > > > As far as gencode goes, your line has errors. With CUDA 8 it should look > like: > > -gencode arch=compute_20,code=\"sm_20,compute_20\" > > > > > > On Mon, Sep 4, 2017 at 4:06 AM, Mueller-Roemer, Johannes Sebastian < > johannes.sebastian.mueller-roe...@igd.fraunhofer.de> wrote: > > I’m having two issues with debug symbols for CUDA libraries on a project: > > > > 1. The PDBs are not placed where the linker later expects to find > them (haven’t been able to replicate this in a minimal project yet) > > 2. Trying to circumnavigate this issue by using “/Z7” instead of > “/Zi” does not work, Zi is always used (replicable in any project with CUDA) > > Replication steps: Replace -Zi or /Zi in CMAKE_*_FLAGS* (CUDA, CXX, C) by > -Z7 or /Z7. Build and see several warnings like “cl : Command line warning > D9025: overriding '/Z7' with '/Zi'” in the output window. > And do the flags in the –Xcompiler make sense at all in VS? The CUDA build > tools seem to determine these automatically anyways… for example I get the > following call in the above scenario: > > "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v8.0\bin\nvcc.exe" > -gencode=arch=compute_20,code=\"sm_20,compute_20\" --use-local-env > --cl-version 2015 -ccbin "C:\Program Files (x86)\Microsoft Visual Studio > 14.0\VC\bin\amd64" -I"C:\Program Files\NVIDIA GPU Computing > Toolkit\CUDA\v8.0\include" -I"C:\Program Files\NVIDIA GPU Computing > Toolkit\CUDA\v8.0\include" -G --keep-dir x64\Debug -maxrregcount=0 > --machine 64 --compile -cudart static -Xcompiler="/EHsc -Z7 -Ob0" -g > -D_WINDOWS -Xcompiler "/EHsc /W3 /nologo /Od /FS /Zi /RTC1 /MDd /GR" -o > A.dir\Debug\a.cu.obj "D:\jsroemer\projects\cuda-pdb-test\a\a.cu" > > 3. Also, -gencode flags do not behave as expected when given in the > form -gencode=arch=compute_20,code="sm_20,compute_20", as this causes the > VS build system to error out: > > C:\Program Files (x86)\MSBuild\Microsoft.Cpp\ > v4.0\V140\BuildCustomizations\CUDA 8.0.targets(216,9): error : Item > '..\..\a\a.cu' Code Generation value is not in the expected format > '[Arch],[Code]'. > > The code generation value in this example is set to > compute_20,sm_20,compute_20 by CMake. > > > > Fraunhofer-Institut für Graphische Datenverarbeitung IGD > > Fraunhoferstr. 5 | 64283 Darmstadt | Germany > > Tel +49 6151 155-606 <+49%206151%20155606> | Fax +49 6151 155-139 > <+49%206151%20155139> > > johannes.mueller-roe...@igd.fraunhofer.de | www.igd.fraunhofer.de > > > > > -- > > Powered by www.kitware.com > > Please keep messages on-topic and check the CMake FAQ at: > http://www.cmake.org/Wiki/CMake_FAQ > > Kitware offers various services to support the CMake community. For more > information on each offering, please visit: > > CMake Support: http://cmake.org/cmake/help/support.html > CMake Consulting: http://cmake.org/cmake/help/consulting.html > CMake Training Courses: http://cmake.org/cmake/help/training.html > > Visit other Kitware open-source projects at http://www.kitware.com/ > opensource/opensource.html > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/cmake > > >
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