tqchen commented on a change in pull request #8373:
URL: https://github.com/apache/tvm/pull/8373#discussion_r661870316
##########
File path: CMakeLists.txt
##########
@@ -635,3 +635,15 @@ if(APPLE AND TVM_IS_DEBUG_BUILD)
VERBATIM
)
endif()
+
+# Caches the build.
+# Note that ccache-3.x doesn't support nvcc well, so CUDA kernels may never
hit the cache and still
+# need to be re-compiled every time. Using ccache 4.0+ can resolve this issue.
+
+if(USE_CCACHE)
+ find_program(CCACHE_FOUND ccache)
+ if(CCACHE_FOUND)
Review comment:
We might want to feed the result of find_program to the variable, in
case ccache is not in path but find_program manages to find it
##########
File path: CMakeLists.txt
##########
@@ -635,3 +635,15 @@ if(APPLE AND TVM_IS_DEBUG_BUILD)
VERBATIM
)
endif()
+
+# Caches the build.
+# Note that ccache-3.x doesn't support nvcc well, so CUDA kernels may never
hit the cache and still
+# need to be re-compiled every time. Using ccache 4.0+ can resolve this issue.
+
+if(USE_CCACHE)
+ find_program(CCACHE_FOUND ccache)
+ if(CCACHE_FOUND)
+ message(STATUS "Enabling ccache")
+ set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
Review comment:
would be grgeat to check if we can use set CXX_COMPILER_LAUNCHER here
and get the same goal
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