undefined symbol: sgemv_thread_n

On 1 December 2017 at 19:55, G?ran Brostr?m wrote:
| Hello,
|
| the following is a part of a question asked on R-help. I realized that
| it is better suited for asking here. Apologies for the cross-posting!
|
| I'm on Ubuntu artful, and upgraded with 'apt'. Then
|
| ----------------------------------------------------------------
| goran at M6800:~/src/R-3.4.3$ /usr/bin/R
| /usr/lib/R/bin/exec/R: symbol lookup error:
| /usr/lib/x86_64-linux-gnu/libblas.so.3: undefined symbol: sgemv_thread_n
| ----------------------------------------------------------------
|
| Never seen this before. What can I do?

At home:

edd at bud:~$ COLUMNS=70 dpkg -l | grep blas
ii  libblas-common 3.7.0-1      amd64        Dependency package for all BLAS i
ii  libblas-dev    3.7.0-1      amd64        Basic Linear Algebra Subroutines
ii  libblas3       3.7.0-1      amd64        Basic Linear Algebra Reference im
ii  libopenblas-ba 0.2.19-2     amd64        Optimized BLAS (linear algebra) l
edd at bud:~$

At work:
........ at .....:~$ COLUMNS=70 dpkg -l | grep blas
ii  libblas-common 3.7.0-1      amd64        Dependency package for all BLAS i
ii  libblas-dev    3.7.0-1      amd64        Basic Linear Algebra Subroutines
ii  libblas3       3.7.0-1      amd64        Basic Linear Algebra Reference im
ii  libcublas8.0:a 8.0.44-3     amd64        NVIDIA cuBLAS Library
ii  libnvblas8.0:a 8.0.44-3     amd64        NVBLAS runtime library
ii  libopenblas-ba 0.2.19-2     amd64        Optimized BLAS (linear algebra) l
ii  libopenblas-de 0.2.19-2     amd64        Optimized BLAS (linear algebra) l
........ at .....:~$

In other words, I tend to use standard blas or openblas or atlas (but
seemingly less often).  Both are 17.04, but that doesn't matter as they both
have been updated regularly over the years.

You must have gotten out of whack between what compiled R, and what runs it.
Did you by chance compile R 3.4.3 locally?

Dirk