libmxnet.so: undefined symbol: dorgqr_？？？？？？？？？？？？？？？？？

[zhangguotai]

I have compiled mxnet successfully,why this fault happened?

[larroy]

please provide more info on how you compiled, platform etc.

[zhangguotai]

make -j $(nproc) USE_BLAS=openblas,platform is ubuntu 14
I have compiled lapack and openblas successfully.

[larroy]

can you try to disable LAPACK? Do you need LAPACK?
Did you compile lapack and openblas yourself?

USE_LAPACK=0

[zhangguotai]

I don't know that what relationship of openblas and lapack.
But by $ sudo apt-get install -y libopenblas-dev liblapack-dev,sudo apt-get install -y libopencv-dev,so I think that USE_LAPACK=1 USE_OPENCV = 1.
It isn't correct?

[larroy]

should be correct, maybe due to ubuntu? We test in ubuntu 16.04. Why do you run ubuntu 14? is too old.

[lupesko]

Confirmed to work on Ubuntu 16.04.
Closing due to inactivity in over 1 month.

@zhangguotai - feel free to submit this as a question in the discussion forum discuss.mxnet.io.

[lupesko]

@sandeep-krishnamurthy please close and label:

• Question
• Build

[apeforest]

Got the same error in MXNet 1.5 release
OSError: /tmp/incubator-mxnet/python/mxnet/../../lib/libmxnet.so: undefined symbol: dorgqr_ when I tried to pip install horovod after building MXNet from source.

Environment:

----------Python Info----------
Version      : 3.6.4
Compiler     : GCC 7.2.0
Build        : ('default', 'Jan 16 2018 18:10:19')
Arch         : ('64bit', '')
------------Pip Info-----------
Version      : 18.0
Directory    : /home/ubuntu/anaconda3/lib/python3.6/site-packages/pip
----------MXNet Info-----------
Hashtag not found. Not installed from pre-built package.
----------System Info----------
Platform     : Linux-4.4.0-1075-aws-x86_64-with-debian-stretch-sid
system       : Linux
node         : ip-172-31-15-236
release      : 4.4.0-1075-aws
version      : #85-Ubuntu SMP Thu Jan 17 17:15:12 UTC 2019
----------Hardware Info----------
machine      : x86_64
processor    : x86_64
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                32
On-line CPU(s) list:   0-31
Thread(s) per core:    2
Core(s) per socket:    16
Socket(s):             1
NUMA node(s):          1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 79
Model name:            Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz
Stepping:              1
CPU MHz:               1862.011
CPU max MHz:           3000.0000
CPU min MHz:           1200.0000
BogoMIPS:              4600.08
Hypervisor vendor:     Xen
Virtualization type:   full
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              46080K
NUMA node0 CPU(s):     0-31
Flags:                 fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single kaiser fsgsbase bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx xsaveopt

[larroy]

lapack?

[larroy]

can you run ldd?