Hi, I have a MR open for CMake that resolves this bug (https://gitlab.kitware.com/cmake/cmake/merge_requests/1618)
On Thu, Sep 7, 2017 at 9:48 AM, Robert Maynard <robert.mayn...@kitware.com> wrote: > Okay I have opened an issue on CMake for handling multiple gencode with > multiple code targets. > > On Wed, Sep 6, 2017 at 3:19 PM, Mueller-Roemer, Johannes Sebastian > <johannes.sebastian.mueller-roe...@igd.fraunhofer.de> wrote: >> >> Yes >> >> ________________________________ >> From: Robert Maynard [robert.mayn...@kitware.com] >> Sent: Wednesday, September 06, 2017 6:58 PM >> To: Mueller-Roemer, Johannes Sebastian >> Cc: cmake@cmake.org >> Subject: Re: [CMake] CMake 3.9.x Visual Studio CUDA PDB/compiler flags >> issues >> >> So it works when they are separate gen-code options, but fails when they >> are combined. Is that correct? >> >> >> On Wed, Sep 6, 2017 at 11:16 AM, Mueller-Roemer, Johannes Sebastian >> <johannes.sebastian.mueller-roe...@igd.fraunhofer.de<mailto:johannes.sebastian.mueller-roe...@igd.fraunhofer.de>> >> wrote: >> The long form fills the Code Generation field with >> compute_20,sm_20;compute_20,compute_20 (the default without gencode >> parameters is compute_20,sm_20) and results in the following command line: >> >> D:\jsroemer\projects\cuda-pdb-test\build\a>"C:\Program Files\NVIDIA GPU >> Computing Toolkit\CUDA\v8.0\bin\nvcc.exe" >> -gencode=arch=compute_20,code=\"sm_20,compute_20\" >> -gencode=arch=compute_20,code=\"compute_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 -Zi -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<http://a.cu>" >> >> Which is somewhat redundant >> >> MSVC turns compute_20,sm_20 into >> -gencode=arch=compute_20,code=\"sm_20,compute_20\" and compute_20,compute_20 >> into -gencode=arch=compute_20,code=\"compute_20,compute_20\" >> >> >> Fraunhofer-Institut für Graphische Datenverarbeitung IGD >> Fraunhoferstr. 5 | 64283 Darmstadt | Germany >> Tel +49 6151 155-606<tel:+49%206151%20155606> | Fax +49 6151 >> 155-139<tel:+49%206151%20155139> >> >> johannes.mueller-roe...@igd.fraunhofer.de<mailto:johannes.mueller-roe...@igd.fraunhofer.de> >> | www.igd.fraunhofer.de<http://www.igd.fraunhofer.de> >> >> From: Robert Maynard >> [mailto:robert.mayn...@kitware.com<mailto:robert.mayn...@kitware.com>] >> Sent: Wednesday, September 6, 2017 16:44 >> >> To: Mueller-Roemer, Johannes Sebastian >> <johannes.sebastian.mueller-roe...@igd.fraunhofer.de<mailto:johannes.sebastian.mueller-roe...@igd.fraunhofer.de>> >> Cc: cmake@cmake.org<mailto:cmake@cmake.org> >> Subject: Re: [CMake] CMake 3.9.x Visual Studio CUDA PDB/compiler flags >> issues >> >> 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<mailto: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<tel:+49%206151%20155606> | Fax +49 6151 >> 155-139<tel:+49%206151%20155139> >> >> johannes.mueller-roe...@igd.fraunhofer.de<mailto:johannes.mueller-roe...@igd.fraunhofer.de> >> | www.igd.fraunhofer.de<http://www.igd.fraunhofer.de> >> >> From: Robert Maynard >> [mailto:robert.mayn...@kitware.com<mailto:robert.mayn...@kitware.com>] >> Sent: Wednesday, September 6, 2017 15:38 >> To: Mueller-Roemer, Johannes Sebastian >> <johannes.sebastian.mueller-roe...@igd.fraunhofer.de<mailto:johannes.sebastian.mueller-roe...@igd.fraunhofer.de>> >> Cc: cmake@cmake.org<mailto: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<mailto: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<http://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<http://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<tel:+49%206151%20155606> | Fax +49 6151 >> 155-139<tel:+49%206151%20155139> >> >> johannes.mueller-roe...@igd.fraunhofer.de<mailto:johannes.mueller-roe...@igd.fraunhofer.de> >> | www.igd.fraunhofer.de<http://www.igd.fraunhofer.de> >> >> >> -- >> >> Powered by www.kitware.com<http://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. 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