fix number of particle seeding by element roundings

2 jobs for particles1 in 30 minutes and 20 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Test
failed #9177
makedg

00:30:20

passed #9178
win64

00:08:49

 
Name Stage Failure
failed
makedg Test There is an unknown failure, please try again

Total Test time (real) = 1367.22 sec

The following tests FAILED:
33 - modules/slimParticles/tests/parTracker_basic (Failed)
34 - modules/slimParticles/tests/parTracker_wind (Failed)
35 - modules/slimParticles/tests/parTracker_seedWithDof (Failed)
Errors while running CTest
ERROR: Build failed: exit code 1