[ET Trac] [Einstein Toolkit] #1276: Intel 2013.1.117 mis-compiles NewRad

[Einstein Toolkit]

#1276: Intel 2013.1.117 mis-compiles NewRad
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  Reporter:  rhaas                  |       Owner:                     
      Type:  defect                 |      Status:  reopened           
  Priority:  major                  |   Milestone:  ET_2014_05         
 Component:  EinsteinToolkit thorn  |     Version:  development version
Resolution:                         |    Keywords:  NewRad             
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Changes (by bmundim):

  * status:  closed => reopened
  * resolution:  fixed =>


Comment:

 This bug seems to be partially back on intel 14.
 I am updating the loewe.cfg file after a machine
 upgrade and noticed that all tests using the
 parameter

 ML_BSSN::my_initial_boundary_condition = "extrapolate-gammas"

 failed. After I realized all failed at NewRad.c
 I recalled this ticket and then I ran Frank's standalone
 code with -O0, -O1, -O2, -O3, -Ofast flags. As you can see
 below only the -O1 and -O2 flags corrupted the output.
 Since the -O2 is usually the default flag, I thought of
 reporting this issue here again.

 icpc -o ./extrap -O0 ./extrap.cc
 ./extrap
 2 2
 2 2
 2 2
 icpc -o ./extrap -O1 ./extrap.cc
 /extrap
 -10184 -10184
 -10184 -10184
 -10184 -10184
 icpc -o ./extrap -O2 ./extrap.cc
 ./extrap
 40896 40896
 40896 40896
 40896 40896
 icpc -o ./extrap -O3 ./extrap.cc
 ./extrap
 2 2
 2 2
 2 2
 icpc -o ./extrap -Ofast ./extrap.cc
 ./extrap
 2 2
 2 2
 2 2

 The full version of the compiler I used is:

 icpc -V
 Intel(R) C++ Intel(R) 64 Compiler XE for applications running on Intel(R)
 64, Version 14.0.3.174 Build 20140422
 Copyright (C) 1985-2014 Intel Corporation.  All rights reserved.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1276#comment:41>
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