[Nek5000-users] what is?

[nek5000-users at lists.mcs.anl.gov]

This just gives you an indication of how much of the partitioning is completed
(which is done by recursive spectral bisection).

Disconnected subgraphs are ok if the numbers in the row are small (<10).
If they are larger, it indicates some kind of problem.

The case will still run in any case, but performance could be suboptimal
for large processor counts if you have large disconnected subgraphs
because there would be more communication than expected.

genmap takes steps to correct disconnected subgraphs but is not
always successful.  If it can't correct, it moves on and you still have
a load-balanced partition.

Paul

________________________________________
From: nek5000-users-bounces at lists.mcs.anl.gov [nek5000-users-bounces at lists.mcs.anl.gov] on behalf of nek5000-users at lists.mcs.anl.gov [nek5000-users at lists.mcs.anl.gov]
Sent: Wednesday, November 11, 2015 7:17 AM
To: nek5000-users at lists.mcs
.anl.gov
Subject: [Nek5000-users] what is?

Hi neks,
during genmap execution i have this output:

done:    0.0%
  done:    1.0%
  done:    2.0%
  done:    3.0%
  done:    4.0%
  done:    5.0%
  done:    6.0%
  done:    7.0%
  done:    8.0%
  done:    9.0%
  done:   10.0%
  done:   11.0%
  done:   12.0%
  done:   13.0%
  done:   14.0%
  not connected           1           2           1           0
  done:   15.0%
  done:   16.0%
  done:   17.0%
  done:   18.0%
  done:   19.0%
  done:   20.0%
  done:   21.0%
  done:   22.0%
  done:   23.0%
  done:   24.0%
  done:   25.0%

i have copied only till 25%, but sometime i have "not connected  x x x x
", can someone tell me what does it mean? I read relative genmap.f file,
but i didn't undesrtand.
However at least it complete the command and i have the final .map file
but i have errors during compilation, but i don't know if they aere
related to these ones errors or they are memory issues.
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