Raspberry pi 4 compile failure

[MyraBaba]

Latest Rasbian with 4gig memory Raspi 4.

I cloned mxnet repo as described compile doc .

It gives below error:

/usr/bin/ld: CMakeFiles/mxnet_unit_tests.dir/cpp/operator/activation_perf.cc.o: undefined reference to symbol '__atomic_fetch_sub_8@@LIBATOMIC_1.0' /usr/bin/ld: /opt/gcc-9.1.0/lib/libatomic.so.1: error adding symbols: DSO missing from command line collect2: error: ld returned 1 exit status make[2]: *** [tests/CMakeFiles/mxnet_unit_tests.dir/build.make:383: tests/mxnet_unit_tests] Error 1 make[1]: *** [CMakeFiles/Makefile2:1513: tests/CMakeFiles/mxnet_unit_tests.dir/all] Error 2 make: *** [Makefile:141: all] Error 2

it is generating libmxnet.so as below

-rwxr-xr-x 1 pi pi 93324 Jun 26 05:12 im2rec
drwxr-xr-x 2 pi pi 4096 Jun 26 01:36 lib
-rwxr-xr-x 1 pi pi 108772 Jun 26 01:35 libcustomop_lib.so
-rwxr-xr-x 1 pi pi 115799324 Jun 26 05:12 libmxnet.so
-rwxr-xr-x 1 pi pi 107728 Jun 26 01:35 libpass_lib.so
-rwxr-xr-x 1 pi pi 143436 Jun 26 01:36 libsubgraph_lib.so
-rwxr-xr-x 1 pi pi 108712 Jun 26 01:36 libtransposecsr_lib.so
-rwxr-xr-x 1 pi pi 110252 Jun 26 01:35 libtransposerowsp_lib.so

when I try :

python3 setup.py bdist_wheel

its working without errors but last hours hours no result ?

Is there anybody who can succesfully compile mxnet on the RaspberryPi 4?

Best

[MyraBaba]

I successfully build mx1.5.1

but not latest one.

[leezu]

@MyraBaba could you try calling cmake with the cmake -Dmxnet_LINKER_LIBS=-latomic [...] argument? We should auto-detect this, but it's not yet done correctly.

[Qengineering]

I've built the latest version of MXNet (2.0.0) on a Raspberry Pi with 32 bit and 64 bit OS successfully. The instructions can be found here install-mxnet-on-raspberry-pi-4