--- MITgcm/tools/build_options/linux_ia64_ifort+mpi_altix_nas	2010/03/21 18:01:13	1.20
+++ MITgcm/tools/build_options/linux_ia64_ifort+mpi_altix_nas	2010/04/23 19:32:46	1.21
@@ -1,6 +1,6 @@
 #!/bin/bash
 #
-# $Header: /home/ubuntu/mnt/e9_copy/MITgcm/tools/build_options/linux_ia64_ifort+mpi_altix_nas,v 1.20 2010/03/21 18:01:13 jmc Exp $
+# $Header: /home/ubuntu/mnt/e9_copy/MITgcm/tools/build_options/linux_ia64_ifort+mpi_altix_nas,v 1.21 2010/04/23 19:32:46 dimitri Exp $
 # $Name:  $
 
 # tested on columbia using:
@@ -24,8 +24,7 @@
 
 if test "x$IEEE" = x ; then
     #  No need for IEEE-754
-#   FFLAGS="$FFLAGS -fp-model precise -w95 -W0 -WB -convert big_endian -assume byterecl"
-    FFLAGS="$FFLAGS -mp -w95 -W0 -WB -convert big_endian -assume byterecl"
+    FFLAGS="$FFLAGS -fp-model precise -ftz -w95 -W0 -WB -convert big_endian -assume byterecl"
     FOPTIM='-O3 -align'
     NOOPTFLAGS='-O1'
     NOOPTFILES='calc_oce_mxlayer.F fizhi_lsm.F fizhi_clockstuff.F'