I tried -optl-mmacosx-version-min=11.0 and MACOSX_DEPLOYMENT_TARGET=11.0 which both resulted in many warnings like ld: warning: dylib (/opt/homebrew/lib/libpq.dylib) was built for newer macOS version (12.0) than being linked (11.0) followed by the same ld assertion failure.
rainbowforest
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Thanks! Filed feedback with the output and /tmp/...ld-snapshot contents. Bug number is 9839914.
Yes, building for Apple silicon on Apple silicon.
$ ghc --info
,("target platform string","aarch64-apple-darwin")
,("target os","OSDarwin")
,("target arch","ArchAArch64")
,("LLVM target","arm64-apple-darwin")
,("Build platform","aarch64-apple-darwin")
,("Host platform","aarch64-apple-darwin")
,("Target platform","aarch64-apple-darwin")
Wrapping your code with tf.device('/cpu:0'): I get 9.63 seconds (M1) and with GPU 60s.