The 2 cases for Linux look okay to me. Please feel free to disagree.
(But only if you actually say so!) Details below.
On 05/25/2017 11:57 AM, Hughes, Steven P. (GSFC-5950) wrote:
Need to run on Linux and find out why failing, DJC
·Integrator_LEO_PD853_Accuracy []
This is a tolerance issue we've seen before for this script (in R2016a,
I think). The script performs 3 checks:
If posError9 > posError7
passFlag = 0
EndIf
If posError11 > 5e-6
passFlag = 0
EndIf
If posError13 > 5e-6
passFlag = 0
EndIf
When I report those values, I get
posError9 = 4.407143931102817e-06
posError7 = 0.00121590394539874
posError11 = 1.119000169511592e-06
posError13 = 5.053184463840418e-06
For this run, posError9 < posError 7, so the first case is failing. But
the test cases seems pretty suspicious to me -- it is counting on one
stop being more precise than the other (tolerance is 1e-7 for posError7
and 1e-9 for posError9), and posError7 *happens* to stop more precisely
for this run. Both runs are stepping to within tolerance, though.
Conclusion: The test is poorly constructed IMO. The script produces
acceptable results.
·TrkFile_SimEst_TDRS_range_Solve_Cd []
This is a tolerance issue. The script performs 3 checks:
If PosError < .2 & VelError < 1e-5 & CdError < 0.1
PassFlag = 1
EndIf
When I run the test, the converged solution has
PosError = 0.003098802948995548
VelError = 3.452776017122671e-06
CdError = 0.1016732209751297
The CdError exceeds the expected value by 0.0016..., making PassFlag 0.
Conclusion: The test tolerance is slightly too tight for the sim/est
process on Linux.
*Finally, a recommendation: Can we please stop using the
TrueFalseComparator for test cases that have _actual expected_ numerical
results?**
*
- DJC
--
Darrel J. Conway, Ph.D. Thinking Systems, Inc.
Senior Scientist and CEO 437 W Thurber Road, Suite 6
Phone: (623) 298-4530 Tucson, AZ 85705
FAX: (520) 232-2533 www.thinksysinc.com
Cell: (520) 425-3626 [email protected]
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