[Halld-offline] zero field

Matthew Shepherd mashephe at indiana.edu
Thu Jul 17 21:49:11 EDT 2014


Hi all,

Paul and I have been trying to understand why I cannot
get the example analysis software working and we seem
to have traced the problem down to the fact that the 
magnetic field map is returning a zero field.

Does anyone know how to debug this?  The startup
of the job suggests all is OK (I think):

JANA >>URL: sqlite:////home/s4/mashephe/gluex/ccdb.sqlite
JANA >>context: default
JANA >>Reading Magnetic field map from Magnets/Solenoid/solenoid_1350_poisson_20
130925 ...
 Nx=251 Ny=1 Nz=43 )  at 0x7f46720a0ce0
Fine-mesh evio file does not exist.
Constructing the fine-mesh B-field map...
 rmin: 0 rmax: 88.5 dr: 0.1 zmin: 0 zmax: 600 dz: 0.1vg.: 0.0Hz)     
 Number of points in z = 6000
 Number of points in r = 885
JANA >>10599 entries found (Created Magnetic field map of type DMagneticFieldMap

I'm using:

sim-recon-2014-06-30
ccdb_1.02
hdds-2.1
jana_0.7.1p3

and a ccdb.sqlite file from July 14 (copied from Mark's web page link that day).  I've also
tried the ccdb.sqlite file from dc2 conditions.

Matt


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Matthew Shepherd, Associate Professor
Department of Physics, Indiana University, Swain West 265
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