Ring memory logging

[jaycedowell]

Added support for logging of ring metadata (space, alignment, size, etc.) and updated several of the tools to use the new information. This includes:

• a new ring directory under /dev/shm/bifrost/<pid> where the metadata is stored
• per-ring ProcLog metadata indexed by the ring name that includes:
  • space - where the ring is allocated
  • binding - NUMA binding, if applicable
  • alignment - allocation alignment, in bytes
  • ghost - size of the ghost region, in bytes
  • span - size of a span, in bytes
  • stride - stride size, in bytes
  • nringlet - the number of ringlets in use
• updates to like_ps.py and like_top.py to work with the new structure in /dev/shm
• a new script called like_pmap.py that provides some insight into memory usage in a pipeline
• update to bifrost.ring.SpanBase.data_view() to support non-NumPy data types, i.e., 'ci4'
• small changes to some of the "like" script to help suppress VMA messages
• added a core keyword to the bifrost.ring[2].Ring.__init__() to set the NUMA binding for a ring

[jaycedowell]

I'm not sure where the travis errors are coming from. Do they look familiar to anyone?

[benbarsdell]

The ctypesgen step failed (visible in the hidden build log), but it doesn't stop the build (I'll try to fix this soon).

Can't include string in memory.h (it has to be pure C).

[coveralls]

Coverage increased (+0.1%) to 65.725% when pulling 4a67c8127b883b6cbe91ca624dfad1413a36f083 on jaycedowell:ring-info into 84891770f905b786d8c302695ad4928e80ee7a3a on ledatelescope:master.

[codecov-io]

Codecov Report

Merging #100 into master will decrease coverage by 1.28%. The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master     #100      +/-   ##
==========================================
- Coverage   67.17%   65.88%   -1.29%     
==========================================
  Files          39       41       +2     
  Lines        3555     3834     +279     
==========================================
+ Hits         2388     2526     +138     
- Misses       1167     1308     +141

Impacted Files	Coverage Δ
python/bifrost/proclog.py	27.27% <ø> (ø)	:arrow_up:
python/bifrost/ring2.py	86.66% <64.28%> (-1.8%)	:arrow_down:
python/bifrost/ring.py	90.82% <68.75%> (-1.93%)	:arrow_down:
python/bifrost/libbifrost.py	55.07% <0%> (-1.65%)	:arrow_down:
python/bifrost/DataType.py	63.2% <0%> (-1.45%)	:arrow_down:
python/bifrost/blocks/serialize.py	89.28% <0%> (-0.88%)	:arrow_down:
python/bifrost/sigproc2.py	54.02% <0%> (-0.52%)	:arrow_down:
python/bifrost/block.py	89.78% <0%> (-0.47%)	:arrow_down:
python/bifrost/ndarray.py	77.23% <0%> (-0.25%)	:arrow_down:
... and 5 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 8489177...81427a0. Read the comment docs.

[coveralls]

Coverage increased (+0.1%) to 65.725% when pulling 2d2ef06a960c7b0ef32893c08d2733c600ed6853 on jaycedowell:ring-info into 84891770f905b786d8c302695ad4928e80ee7a3a on ledatelescope:master.

[coveralls]

Coverage increased (+0.1%) to 65.725% when pulling 2d2ef06a960c7b0ef32893c08d2733c600ed6853 on jaycedowell:ring-info into 84891770f905b786d8c302695ad4928e80ee7a3a on ledatelescope:master.

[coveralls]

Coverage increased (+0.3%) to 65.941% when pulling e2da49c6f641675b3b00cc0b4414cda5be7f5eed on jaycedowell:ring-info into 84891770f905b786d8c302695ad4928e80ee7a3a on ledatelescope:master.

[coveralls]

Coverage increased (+0.3%) to 65.941% when pulling e2da49c6f641675b3b00cc0b4414cda5be7f5eed on jaycedowell:ring-info into 84891770f905b786d8c302695ad4928e80ee7a3a on ledatelescope:master.

[coveralls]

Coverage decreased (-3.4%) to 62.195% when pulling 81427a08ce501a0f4b563d85ac45f21af9f99015 on jaycedowell:ring-info into 84891770f905b786d8c302695ad4928e80ee7a3a on ledatelescope:master.

[coveralls]

Coverage decreased (-3.4%) to 62.195% when pulling 81427a08ce501a0f4b563d85ac45f21af9f99015 on jaycedowell:ring-info into 84891770f905b786d8c302695ad4928e80ee7a3a on ledatelescope:master.