Use consistent names for internal nvcc files

[trxcllnt]

This PR extracts the fixes from #2356 per @drahnr's request.

This PR branched from/is a follow-up to #2382. See the diff of the two branches here.

The names for the internal files depend on the compilation flag and device architectures. nvcc generates a different name for the .cpp1.ii, .cudafe1.c, .cudafe1.stub.c, .cudafe1.gpu, .ptx, and .cubin files when the compile flag is -ptx, -cubin, or -c, and also on whether there's one vs. many -gencode arguments. Additionally, it will either include or omit the --gen_module_id_file flag from the cicc invocation based on whether the compile flag is -ptx, -cubin, or -c.

Some examples:

# compile flag: -ptx, single arch
$ nvcc -x cu -ptx x.cu -o x.cu.o -gencode=arch=compute_60,code=[compute_60,sm_60] --dryrun --keep --keep-dir /x 2>&1 | grep -P '(cpp1\.ii|\.ptx|\.cubin)'
#$ gcc -E ... "x.cu" -o "/x/x.cpp1.ii" 
#$ "$CICC_PATH/cicc" ... --gen_module_id_file --module_id_file_name "/x/x.module_id"  "/x/x.cpp1.ii" -o "x.cu.o"

# compile flag: -cubin, single arch
$ nvcc -x cu -cubin x.cu -o x.cu.o -gencode=arch=compute_60,code=[sm_60] --dryrun --keep --keep-dir /x 2>&1 | grep -P '(cpp1\.ii|\.ptx|\.cubin)'
#$ gcc -E ... "x.cu" -o "/x/x.cpp1.ii" 
#$ "$CICC_PATH/cicc" ... --gen_module_id_file --module_id_file_name "/x/x.module_id" --gen_c_file_name "/x/x.cudafe1.c" --stub_file_name "/x/x.cudafe1.stub.c" --gen_device_file_name "/x/x.cudafe1.gpu"  "/x/x.cpp1.ii" -o "/x/x.ptx"
#$ ptxas -arch=sm_60 -m64  "/x/x.ptx"  -o "x.cu.o"

# compile flag: -c, single arch
$ nvcc -x cu -c x.cu -o x.cu.o -gencode=arch=compute_60,code=[compute_60,sm_60] --dryrun --keep --keep-dir /x 2>&1 | grep -P '(cpp1\.ii|\.ptx|\.cubin)'
#$ gcc -E ... "x.cu" -o "/x/x.cpp1.ii" 
#$ "$CICC_PATH/cicc" ... --module_id_file_name "/x/x.module_id" --gen_c_file_name "/x/x.cudafe1.c" --stub_file_name "/x/x.cudafe1.stub.c" --gen_device_file_name "/x/x.cudafe1.gpu"  "/x/x.cpp1.ii" -o "/x/x.ptx"
#$ ptxas -arch=sm_60 -m64  "/x/x.ptx"  -o "/x/x.sm_60.cubin" 

# compile flag: -c, multiple archs
$ nvcc -x cu -c x.cu -o x.cu.o -gencode=arch=compute_60,code=[sm_60] -gencode=arch=compute_70,code=[compute_70,sm_70] --dryrun --keep --keep-dir /x 2>&1 | grep -P '(cpp1\.ii|\.ptx|\.cubin)'
#$ gcc -E ... "x.cu" -o "/x/x.compute_60.cpp1.ii" 
#$ "$CICC_PATH/cicc" ... --module_id_file_name "/x/x.module_id" --gen_c_file_name "/x/x.compute_60.cudafe1.c" --stub_file_name "/x/x.compute_60.cudafe1.stub.c" --gen_device_file_name "/x/x.compute_60.cudafe1.gpu"  "/x/x.compute_60.cpp1.ii" -o "/x/x.compute_60.ptx"
#$ ptxas -arch=sm_60 -m64  "/x/x.compute_60.ptx"  -o "/x/x.compute_60.cubin" 
#$ gcc -E ... "x.cu" -o "/x/x.compute_70.cpp1.ii" 
#$ "$CICC_PATH/cicc" ... --module_id_file_name "/x/x.module_id" --gen_c_file_name "/x/x.compute_70.cudafe1.c" --stub_file_name "/x/x.compute_70.cudafe1.stub.c" --gen_device_file_name "/x/x.compute_70.cudafe1.gpu"  "/x/x.compute_70.cpp1.ii" -o "/x/x.compute_70.ptx"
#$ ptxas -arch=sm_70 -m64  "/x/x.compute_70.ptx"  -o "/x/x.compute_70.sm_70.cubin" 

From the above, we observe that:

• .cpp1.ii, .cudafe1.c, .cudafe1.stub.c, .cudafe1.gpu, and .ptx files are either:
  • x.<suffix>
  • x.compute_XX.<suffix>
• .cubin files are either:
  • x.cubin
  • x.compute_XX.cubin
  • x.compute_XX.sm_XX.cubin
• without -c, the cicc command includes --gen_module_id_file
• with -c, the cicc command omits --gen_module_id_file

This PR hashes all the cudafe++, cicc, and ptxas arguments to avoid collisions, but nvcc's inconsistent file naming leads to cache misses when there should be hits. So for simplicity I updated the renaming logic to rename to the longest form of each (i.e. x.compute_XX.ptx, x.compute_XX.sm_XX.cubin), and always add the --gen_module_id_file flag to cicc invocations.

[trxcllnt]

Looks like integration tests are failing due to https://github.blog/changelog/2025-03-20-notification-of-upcoming-breaking-changes-in-github-actions/#decommissioned-cache-service-brownouts

[trxcllnt]

cc: @robertmaynard for review

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 25.72298% with 488 lines in your changes missing coverage. Please review.

Project coverage is 69.57%. Comparing base (9fb942e) to head (ffe68b9).

Files with missing lines	Patch %	Lines
src/compiler/nvcc.rs	0.00%	453 Missing ⚠️
src/compiler/cicc.rs	0.00%	24 Missing ⚠️
src/compiler/msvc.rs	0.00%	5 Missing ⚠️
src/compiler/cudafe.rs	0.00%	1 Missing ⚠️
src/compiler/diab.rs	0.00%	1 Missing ⚠️
src/compiler/nvhpc.rs	0.00%	1 Missing ⚠️
src/compiler/ptxas.rs	0.00%	1 Missing ⚠️
src/compiler/tasking_vx.rs	0.00%	1 Missing ⚠️
tests/harness/client.rs	99.25%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2383      +/-   ##
==========================================
- Coverage   71.41%   69.57%   -1.84%     
==========================================
  Files          65       45      -20     
  Lines       36349    26521    -9828     
==========================================
- Hits        25960    18453    -7507     
+ Misses      10389     8068    -2321     

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[trxcllnt]

I renamed this from UnhashedOutput -> ExtraOutput to reflect that these argument types are now hashed.