coreir/pycoreir requirements

[steveri]

So I installed pycoreir, per Raj's suggestion on Wednesday, and my libcoreir problems went away. Thanks!

Currently garnet requirements.txt includes a requirement for coreir (coreir>=2.0.50) but no mention of pycoreir. Should this change? https://github.com/StanfordAHA/garnet/blob/master/requirements.txt

For the record, these are the errors I got before and after deleting libcoreir files:

BEFORE deleting libcoreir*
AttributeError: /lib/libcoreir-c.so: undefined symbol: COREBitInOut

AFTER deleting libcoreir*
OSError: libcoreir-c.so: cannot open shared object file: No such file or directory

[steveri]

New problem: everything seems fine when I compile default garnet e.g. python garnet.py. But if I request verilog output I get familiar problems again:

coreir: error while loading shared libraries: libcoreir.so: 
cannot open shared object file: No such file or directory
...
% python garnet.py -v
  File "/usr/local/lib/python3.7/site-packages/
  magma/backend/coreir_compiler.py", line 54, in __compile_verilog
    raise RuntimeError(f"CoreIR cmd '{cmd}' failed with code {ret}")

  RuntimeError: CoreIR cmd 'coreir -l corebit,coreir,global,float,\
  float_DW,commonlib -i garnet.json -o garnet.v' failed with code 127

I have both coreir and pycoreir installed atm, but of course no libcoreir as per prev fix.

  % pip3 list | grep coreir
  coreir         2.0.53   
  pycoreir       2.0.29.2 

  % ls /usr/lib/*coreir*
  <nothing>

How to fix? Am I missing something obvious here?

[rdaly525]

Just to be clear 'coreir' in a python context refers to 'pycoreir'
'pip install coreir' should work fine. In general, do not manually remove coreirlib files...

[rdaly525]

To fix your problem, I suspect the following will work:

pip3 uninstall coreir
pip3 install coreir

Also as good practice, you should almost always be in a virtual environment (like virtualenv or miniconda) when developing/testing these python tools

[leonardt]

What is the path of which coreir? Is it /usr/bin/coreir?

You shouldn't have both pycoreir and coreir installed, I would just use the coreir package and uninstall pycoreir

[leonardt]

(I'll see if I can remove the pycoreir package from pypi to prevent confusion)

[leonardt]

CC @Kuree are you intending to maintain the pycoreir package? Right now it's very out of date. If not, we should remove it from the pypi listing to prevent confusion.

[leonardt]

(p.s. if you're using the coreir python pre-built package/binary, you should remove /usr/bin/coreir or /usr/local/bin/coreir from your path)

[Kuree]

That was a hack to test coreir distribution. It's been deleted.

[steveri]

Okay things seem to be working now. With help from Keyi, I essentially did the following:

rm /usr/lib/*coreir* /usr/bin/coreir /usr/local/bin/coreir
pip3 uninstall pycoreir
pip3 uninstall coreir
pip3 install coreir

Going forward I suppose other people won't have to worry about this particular problem; I had trouble because I had debris left over from previous installs. Maybe we should just close this issue with no further action(s) being taken?

[rsetaluri]

Agreed @steveri; closing.