expnn opened a new issue #8617: Failed to detect tcmalloc or jemalloc for Fedora 26 URL: https://github.com/apache/incubator-mxnet/issues/8617 The wildcard given by the current Makefile failed to detect the gperftools/jemalloc malloc libraries. Currently, it uses the following snippet to detect these libraries, which assumes the `.so` file is located in the '*/lib' subdirectories. https://github.com/apache/incubator-mxnet/blob/35ceea73ccc1acfb2ec62cdaa841822e51c13456/Makefile#L168-L213 This is not true for Fedora 26 (and for many 64-bit systems), which put the shared library files into 'lib64' subdirectories. For example, on my system, it is located in the `/usr/lib64` directory. ```bash $ locate libtcmalloc.so /usr/lib64/libtcmalloc.so.4 /usr/lib64/libtcmalloc.so.4.4.5 ``` I suggest to using the following snippet to replace the above-mentioned codes. It simply replaces 'lib' into 'lib*' in the wildcard matching. ```Makefile # gperftools malloc library (tcmalloc) ifeq ($(USE_GPERFTOOLS), 1) # FIND_LIBNAME=tcmalloc_and_profiler FIND_LIBNAME=tcmalloc FIND_LIBFILEEXT=so FIND_LIBFILE=$(wildcard /lib*/lib$(FIND_LIBNAME).$(FIND_LIBFILEEXT)) ifeq (,$(FIND_LIBFILE)) FIND_LIBFILE=$(wildcard /usr/lib*/lib$(FIND_LIBNAME).$(FIND_LIBFILEEXT)) ifeq (,$(FIND_LIBFILE)) FIND_LIBFILE=$(wildcard /usr/local/lib*/lib$(FIND_LIBNAME).$(FIND_LIBFILEEXT)) ifeq (,$(FIND_LIBFILE)) USE_GPERFTOOLS=0 endif endif endif ifeq ($(USE_GPERFTOOLS), 1) CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free LDFLAGS += $(FIND_LIBFILE) endif endif # jemalloc malloc library (if not using gperftools) ifneq ($(USE_GPERFTOOLS), 1) ifeq ($(USE_JEMALLOC), 1) FIND_LIBNAME=jemalloc FIND_LIBFILEEXT=so FIND_LIBFILE=$(wildcard /lib*/lib$(FIND_LIBNAME).$(FIND_LIBFILEEXT)) ifeq (,$(FIND_LIBFILE)) FIND_LIBFILE=$(wildcard /usr/lib*/lib$(FIND_LIBNAME).$(FIND_LIBFILEEXT)) ifeq (,$(FIND_LIBFILE)) FIND_LIBFILE=$(wildcard /usr/local/lib*/lib$(FIND_LIBNAME).$(FIND_LIBFILEEXT)) ifeq (,$(FIND_LIBFILE)) FIND_LIBFILE=$(wildcard /usr/lib*/x86_64-linux-gnu/lib$(FIND_LIBNAME).$(FIND_LIBFILEEXT)) ifeq (,$(FIND_LIBFILE)) USE_JEMALLOC=0 endif endif endif endif ifeq ($(USE_JEMALLOC), 1) CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc \ -fno-builtin-free -DUSE_JEMALLOC LDFLAGS += $(FIND_LIBFILE) endif endif endif ```
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