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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2018/05/01 04:28:12 UTC
[GitHub] anirudh2290 commented on a change in pull request #10760:
[MXNET-372] Add build flag for USE_F16C in CMake and clarify flag in make
anirudh2290 commented on a change in pull request #10760: [MXNET-372] Add build flag for USE_F16C in CMake and clarify flag in make
URL: https://github.com/apache/incubator-mxnet/pull/10760#discussion_r185164754
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File path: make/config.mk
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@@ -132,10 +132,19 @@ endif
ARCH := $(shell uname -a)
ifneq (,$(filter $(ARCH), armv6l armv7l powerpc64le ppc64le aarch64))
USE_SSE=0
+ USE_F16C=0
else
USE_SSE=1
endif
+#----------------------------
+# F16C instruction support for faster arithmetic of fp16 on CPU
+#----------------------------
+# For distributed training with fp16, this helps even if training on GPUs
+# If left empty, checks CPU support and turns it on.
+# For cross compilation, please check support for F16C on target device and turn off if necessary.
+USE_F16C =
Review comment:
Why aren't we adding similar logic like CMake for F16C support ?
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