issues with nuc_data.h5 and uwuw_preproc

[Miguel Magán Romero]

Hello all:

After building PyNE, I am trying to use it to make DAGMC work. However, I am stuck with the preprocessing of the materials, because I can't find any materials in the library:

============================

 ~/opt/dagmc/bin/uwuw_preproc geometry.h5m -l /home/mmagan/build_nuc_data/prebuilt_nuc_data.h5  -v

Loading file geometry.h5m

Initializing the GeomQueryTool...

Using faceting tolerance: 0.0001

Implicit Complement assumed to be Vacuum

Making material group name mat:Lead

Making material group name mat:Lead

...

Making material group name mat:Lead

Making material group name mat:Graveyard

Making material group name mat:Vacuum

Materials Present, :

material Lead was not found in the material library

========================

Looking at my material database, I am not sure if things are working as intended. When opening the nuc_data file in a console python, the keys seem to be in byte strings, as opposed to strings as in the webpage (Compare to https://pyne.io/examples/material_library.html)

>>> import pyne

>>> from pyne import nuc_data

>>> from pyne.material_library import MaterialLibrary

>>> mats = MaterialLibrary('/home/mmagan/lib/nuc_data.h5', datapath='/material_library/materials')

>>> list(mats.keys())[-5:]

[b'Inconel-600', b'Steel, Stainless 202', b'Carbon Tetrachloride', b'Cesium Iodide', b'Plutonium Dioxide']

>>> 

Now, I realize that the webpage needs to be updated for the recent release, so this could be intended. However, further confusing me is the fact that the uwuw_preproc passes the tests, and if I use the material file included at the DAGMC repo (https://github.com/svalinn/DAGMC/blob/develop/src/uwuw/tests/mat_lib.h5)

it does show materials. So, I am not certain if my material database is not built correctly, the uwuw_preproc needs updating, or I have something else broken. Could you help with this?

Cheers.

[Paul Wilson]

Hello,

We have identified this as an incompatibility between the new functionality in PyNE and the current state of the DAGMC uwuw_preproc tool.  We have a fix in the works to propagate the new PyNE capability into DAGMC and hope it will be ready in a few days.

Paul

[Miguel Magán Romero]

Hello:

You are right, I am following the PR in github. It is not really a PyNE issue. 

[Anil Kumar Tyagi]

Dear Dr. Paul,

Do we now have the replacement of uwuw_preproc in pyne to make material laiden h5m files?

Thanks for help.

Anil