[cig-commits] [commit] devel: updated the comment about increasing the number of iterations from 4 to 5 (0e5b55c)

[cig_noreply at geodynamics.org]

Repository : https://github.com/geodynamics/specfem3d_globe

On branch  : devel
Link       : https://github.com/geodynamics/specfem3d_globe/compare/ee10f30b8ad6d48e5f1bd68381656e5d64e6433c...0e5b55c6f30be94583639fd325373eecd6facc6d

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commit 0e5b55c6f30be94583639fd325373eecd6facc6d
Author: Dimitri Komatitsch <komatitsch at lma.cnrs-mrs.fr>
Date:   Thu Nov 20 14:55:13 2014 +0100

    updated the comment about increasing the number of iterations from 4 to 5


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0e5b55c6f30be94583639fd325373eecd6facc6d
 setup/constants.h.in | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/setup/constants.h.in b/setup/constants.h.in
index 7659fe5..6e7bd77 100644
--- a/setup/constants.h.in
+++ b/setup/constants.h.in
@@ -715,8 +715,9 @@
 ! number of lines per source in CMTSOLUTION file
   integer, parameter :: NLINES_PER_CMTSOLUTION_SOURCE = 13
 
-! number of iterations to solve the non linear system for xi and eta; this value
-! should be the minimum required to produce consistent results between compilers
+! number of iterations to solve the system for xi and eta
+! setting it to 5 instead of 4 ensures that the result obtained is not compiler dependent
+! (when using 4 only some small discrepancies were observed)
   integer, parameter :: NUM_ITER = 5
 
 ! number of hours per day for rotation rate of the Earth