Add optional use of contiguous arrays for sparse matrix

The reference sparse matrix data structures in GenerateProblem_ref.cpp
can be allocated with a single “new” statement. This feature is turned
on by using the new compile-time macro HPCG_CONTIGUOUS_ARRAYS.  This
features is off by default, but can turned on in the same ways as
working with other HPCG_* defines.

Author: maherou

INSTALL

@@ -175,6 +175,11 @@ options and their meaning are:
 
     -DHPCG_DEBUG
 
+* Compile with sparse matrix arrays allocated contiguously. This option
+* may be helpful on systems with pre-fetch::
+
+    -DHPCG_CONTIGUOUS_ARRAYS
+
 * Compile with voluminous debugging information turned on::
 
     -DHPCG_DETAILED_DEBUG

setup/Make.GCC_OMP

@@ -98,6 +98,7 @@ HPCG_LIBS     =
 #
 # -DHPCG_NO_MPI	        Define to disable MPI
 # -DHPCG_NO_OPENMP	Define to disable OPENMP
+# -DHPCG_CONTIGUOUS_ARRAYS Define to have sparse matrix arrays long and contiguous
 # -DHPCG_DEBUG       	Define to enable debugging output
 # -DHPCG_DETAILED_DEBUG Define to enable very detailed debugging output
 #

setup/Make.ICPC_OMP

@@ -98,6 +98,7 @@ HPCG_LIBS     =
 #
 # -DHPCG_NO_MPI	        Define to disable MPI
 # -DHPCG_NO_OPENMP	Define to disable OPENMP
+# -DHPCG_CONTIGUOUS_ARRAYS Define to have sparse matrix arrays long and contiguous
 # -DHPCG_DEBUG       	Define to enable debugging output
 # -DHPCG_DETAILED_DEBUG Define to enable very detailed debugging output
 #

setup/Make.Linux_MPI

@@ -98,6 +98,7 @@ HPCG_LIBS     =
 #
 # -DHPCG_NO_MPI	        Define to disable MPI
 # -DHPCG_NO_OPENMP	Define to disable OPENMP
+# -DHPCG_CONTIGUOUS_ARRAYS Define to have sparse matrix arrays long and contiguous
 # -DHPCG_DEBUG       	Define to enable debugging output
 # -DHPCG_DETAILED_DEBUG Define to enable very detailed debugging output
 #

setup/Make.Linux_Serial

@@ -98,6 +98,7 @@ HPCG_LIBS     =
 #
 # -DHPCG_NO_MPI	        Define to disable MPI
 # -DHPCG_NO_OPENMP	Define to disable OPENMP
+# -DHPCG_CONTIGUOUS_ARRAYS Define to have sparse matrix arrays long and contiguous
 # -DHPCG_DEBUG       	Define to enable debugging output
 # -DHPCG_DETAILED_DEBUG Define to enable very detailed debugging output
 #

setup/Make.MPIICPC_OMP

@@ -98,6 +98,7 @@ HPCG_LIBS     =
 #
 # -DHPCG_NO_MPI		Define to disable MPI
 # -DHPCG_NO_OPENMP	Define to disable OPENMP
+# -DHPCG_CONTIGUOUS_ARRAYS Define to have sparse matrix arrays long and contiguous
 # -DHPCG_DEBUG       	Define to enable debugging output
 # -DHPCG_DETAILED_DEBUG Define to enable very detailed debugging output
 #

setup/Make.MPI_GCC_OMP

@@ -98,6 +98,7 @@ HPCG_LIBS     =
 #
 # -DHPCG_NO_MPI	        Define to disable MPI
 # -DHPCG_NO_OPENMP	Define to disable OPENMP
+# -DHPCG_CONTIGUOUS_ARRAYS Define to have sparse matrix arrays long and contiguous
 # -DHPCG_DEBUG       	Define to enable debugging output
 # -DHPCG_DETAILED_DEBUG Define to enable very detailed debugging output
 #

setup/Make.MPI_ICPC

@@ -98,6 +98,7 @@ HPCG_LIBS     =
 #
 # -DHPCG_NO_MPI	        Define to disable MPI
 # -DHPCG_NO_OPENMP	Define to disable OPENMP
+# -DHPCG_CONTIGUOUS_ARRAYS Define to have sparse matrix arrays long and contiguous
 # -DHPCG_DEBUG       	Define to enable debugging output
 # -DHPCG_DETAILED_DEBUG Define to enable very detailed debugging output
 #

setup/Make.MPI_ICPC_OMP

@@ -98,6 +98,7 @@ HPCG_LIBS     =
 #
 # -DHPCG_NO_MPI	        Define to enable MPI
 # -DHPCG_NO_OPENMP	Define to disable OPENMP
+# -DHPCG_CONTIGUOUS_ARRAYS Define to have sparse matrix arrays long and contiguous
 # -DHPCG_DEBUG       	Define to enable debugging output
 # -DHPCG_DETAILED_DEBUG Define to enable very detailed debugging output
 #

setup/Make.Mac_MPI

@@ -98,6 +98,7 @@ HPCG_LIBS     =
 #
 # -DHPCG_NO_MPI		Define to disable MPI
 # -DHPCG_NO_OPENMP	Define to disable OPENMP
+# -DHPCG_CONTIGUOUS_ARRAYS Define to have sparse matrix arrays long and contiguous
 # -DHPCG_DEBUG       	Define to enable debugging output
 # -DHPCG_DETAILED_DEBUG Define to enable very detailed debugging output
 #