NETGENPLUGIN: improve netgen performance

src/NETGEN/ReadMeForNgUsers

@@ -1,28 +1,40 @@
 The Netgen 4.5 from the web location : http://www.hpfem.jku.at/netgen/
 (CVS access) is used in the SMESH Module of Salome3 distribution.
 
-How to build Netgen for Salome
+1. How to build Netgen for Salome
 ------------------------------
 
-Patch the netgen 4.5 distribution:
+1.1. Download Netgen 4.5 from the NETGEN home site (see above).
+
+1.2. Unpack the downloaded Netgen 4.5 archive 
+     (hereafter we assume that this is netgen45 directory)
+
+1.3. Patch the netgen 4.5 distribution for SALOME:
 
 $ cd netgen45
 $ patch -p1 < patch_directory/netgen45ForSalome.patch
 
-Set CASROOT environment variable to OCCT installation path,
+1.4. For 64-bit platform you also need to apply another patch:
-as Netgen 4.5 uses Open CASCADE Technology:
+
+$ cd netgen45
+$ patch -p1 < patch_directory/netgen45lib64.patch
+
+1.5. Set CASROOT environment variable to OCCT installation path,
+     since Netgen 4.5 requires Open CASCADE Technology:
 
 $ setenv CASROOT <occt_installation_path>
 
-Then run makeForSalome.sh (it will be created by the patch):
+1.6. Compile and install netgen 4.5. To do this, simply run 
+     makeForSalome.sh script (it is created from the patch):
+
 $ sh makeForSalome.sh
 
 
-Additional information for maintainers
+2. Additional information for maintainers
 --------------------------------------
 
-The file check_NETGENPLUGIN.m4 assumes
+The file check_NETGEN.m4 assumes that Netgen is installed in 
-that Netgen is installed in the directory <netgen_installation_path> as follow:
+the directory <netgen_installation_path> as follow:
 
 prompt> ls <netgen_installation_path>
 
@@ -55,17 +67,16 @@ edgeflw.hpp	     hpref_pyramid.hpp	  msghandler.hpp      sparsmat.hpp
 
 prompt> ls <netgen_installation_path>/lib
 
-LINUX/
-
-prompt> ls <netgen_installation_path>/lib/LINUX
-
 libcsg.a  libgeom2d.a  libla.a	  libnginterface.a  libopti.a
 libgen.a  libgprim.a   libmesh.a  libocc.a	    libstlgeom.a
 
+The library files can be also installed in the LINUX or LINUX64
+subfolder of the lib directory.
+
 All the libraries *.a should be compiled without the option -DOPENGL.
 netgen45 is assumed to be the directory downloaded from the above web
 location archive of Netgen. The library 
-<netgen_installation_path>/lib/LINUX/libnginterface.a should contain the objects
+<netgen_installation_path>/lib/libnginterface.a should contain the objects
 nglib.o (from netgen45/libsrc/interface/nglib.cpp) and ngnewdelete.o
 (from netgen45/ngtcltk/ngnewdelete.cpp).
 

src/NETGEN/netgen45lib64.patch

@@ -0,0 +1,45 @@
+diff -ur netgen-4.5.old/libsrc/makefile.inc netgen-4.5.new/libsrc/makefile.inc
+--- netgen-4.5/libsrc/makefile.inc	2006-04-27 13:12:54.000000000 +0400
++++ netgen-4.5/libsrc/makefile.inc	2006-09-05 14:16:32.000000000 +0400
+@@ -14,7 +14,7 @@
+ #
+ include $(LIBSRC_DIR)/makefile.mach.$(MACHINE)
+ #
+-CPLUSPLUSFLAGS1 = -c -I$(LIBSRC_DIR)/include -I$(OCCINC_DIR) \
++CPLUSPLUSFLAGS1 = -c -m64 -fPIC -I$(LIBSRC_DIR)/include -I$(OCCINC_DIR) \
+ 	-DOCCGEOMETRY -DOCC52 -DHAVE_IOSTREAM -DHAVE_LIMITS
+ #
+ ARFLAGS = r
+diff -ur netgen-4.5.old/libsrc/makefile.mach.LINUX64 netgen-4.5.new/libsrc/makefile.mach.LINUX64
+--- netgen-4.5/libsrc/makefile.mach.LINUX64	2006-03-29 15:09:32.000000000 +0400
++++ netgen-4.5/libsrc/makefile.mach.LINUX64	2006-09-07 15:48:39.000000000 +0400
+@@ -11,7 +11,7 @@
+ #
+ #
+ CFLAGS2 =
+-CPLUSPLUSFLAGS2 = -pg -march=nocona -O2 -DLINUX -DOPENGL \
++CPLUSPLUSFLAGS2 = -pg -march=nocona -O2 -DLINUX \
+ 	-ftemplate-depth-99 -finline-limit=100000 \
+ 	  -fforce-addr  -funroll-loops \
+ 	-DTRAFO  -DNGSOLVE -DnoADDON -DnoLAPACK -DnoFAST \
+@@ -23,7 +23,7 @@
+ # 
+ #  
+ 
+-LINKFLAGS2 = -pg -L/usr/openwin/lib64 -L/usr/X11R6/lib64 -L/usr/lib/GL3.5 -L/usr/lib64
++LINKFLAGS2 = -fPIC -pg -L/usr/openwin/lib64 -L/usr/X11R6/lib64 -L/usr/lib/GL3.5 -L/usr/lib64
+ 
+ 
+ SYSLIB2 =  -lstdc++ 
+diff -ur netgen-4.5.old/Makefile netgen-4.5.new/Makefile
+--- netgen-4.5/Makefile	2006-03-29 15:09:12.000000000 +0400
++++ netgen-4.5/Makefile	2006-09-07 15:46:07.000000000 +0400
+@@ -72,7 +72,7 @@
+ #
+ #CPLUSPLUSFLAGS1 = -c -I$(LIBSRC_DIR)/include  -DOPENGL
+ 
+-CPLUSPLUSFLAGS1 = -c -I$(LIBSRC_DIR)/include -I$(OCCINC_DIR)  -I./ngsolve/include -Ilibsrc/interface -DOPENGL -I$(METISINC)
++CPLUSPLUSFLAGS1 = -c -m64 -I$(LIBSRC_DIR)/include -I$(OCCINC_DIR)  -I./ngsolve/include -Ilibsrc/interface -I$(METISINC)
+ 
+ LINKFLAGS1 =   -lGL -lGLU -lX11 -lXext -lXmu 
+ #