[cig-commits] r21465 - seismo/3D/SPECFEM3D_GLOBE/trunk

[dkomati1 at geodynamics.org]

Author: dkomati1
Date: 2013-03-07 13:25:15 -0800 (Thu, 07 Mar 2013)
New Revision: 21465

Modified:
   seismo/3D/SPECFEM3D_GLOBE/trunk/flags.guess
Log:
better flags.guess


Modified: seismo/3D/SPECFEM3D_GLOBE/trunk/flags.guess
===================================================================
--- seismo/3D/SPECFEM3D_GLOBE/trunk/flags.guess	2013-03-07 21:23:58 UTC (rev 21464)
+++ seismo/3D/SPECFEM3D_GLOBE/trunk/flags.guess	2013-03-07 21:25:15 UTC (rev 21465)
@@ -19,7 +19,7 @@
         #
         if test x"$FLAGS_CHECK" = x; then
             FLAGS_CHECK="-O3 -Onoaggress -Oipa0 -hfp2 -Ovector3 -Oscalar3 -Ocache2 -Ounroll2 -Ofusion2" # turn on optimization; -Oaggress -Oipa4 would make it even more aggressive
-        # -eC -eD -hfp2  # turn on full debugging and range checking
+        # -eC -eD -ec -en -eI -ea -g -G0  # turn on full debugging and range checking
         fi
         ;;
     pgf95|*/pgf95|pgf90|*/pgf90)
@@ -37,8 +37,12 @@
         # Intel ifort Fortran90 for Linux
         # check: http://software.intel.com/sites/products/documentation/hpc/compilerpro/en-us/fortran/lin/compiler_f/index.htm
         #
+# option "-assume buffered_io" is important especially on
+# parallel file systems like SFS 3.2 / Lustre 1.8. If omitted
+# I/O throughput lingers at 2.5 MB/s, with it it can increase to ~44 MB/s
+# However it does not make much of a difference on NFS mounted volumes or with SFS 3.1.1 / Lustre 1.6.7.1 
         if test x"$FLAGS_CHECK" = x; then
-            FLAGS_CHECK="-O3 -xHost -ftz -assume byterecl -align sequence -vec-report0 -std03 -implicitnone -warn truncated_source -warn argument_checking -warn unused -warn declarations -warn alignments -warn ignore_loc -warn usage -check nobounds" # -mcmodel=medium -shared-intel
+            FLAGS_CHECK="-O3 -xHost -ftz -assume buffered_io -assume byterecl -align sequence -vec-report0 -std03 -implicitnone -warn truncated_source -warn argument_checking -warn unused -warn declarations -warn alignments -warn ignore_loc -warn usage -check nobounds" # -mcmodel=medium -shared-intel
         fi
         # useful for debugging...
         # for debugging: change -O3 -check nobounds to      -check all -debug -g -O0 -fp-stack-check -traceback -ftrapuv
@@ -49,12 +53,9 @@
         # GNU gfortran
         #
         if test x"$FLAGS_CHECK" = x; then
-            FLAGS_CHECK="-std=f2003 -fimplicit-none -frange-check -O2 -fmax-errors=10 -pedantic -pedantic-errors -Waliasing -Wampersand -Wcharacter-truncation -Wline-truncation -Wsurprising -Wno-tabs -Wunderflow" # -mcmodel=medium
+            FLAGS_CHECK="-std=f2003 -fimplicit-none -frange-check -O2 -fmax-errors=10 -pedantic -pedantic-errors -Waliasing -Wampersand -Wcharacter-truncation -Wline-truncation -Wsurprising -Wno-tabs -Wunderflow " # -mcmodel=medium
         fi
         # useful for debugging... -ffpe-trap=overflow,zero -fbacktrace -fbounds-check
-        #
-        # older gfortran syntax
-        #   -std=f2003 -fimplicit-none -frange-check -O2 -Wunused-labels -Waliasing -Wampersand -Wsurprising -Wline-truncation -Wunderflow" # -mcmodel=medium
         ;;
     g95|*/g95)
         #