CG test written and passes i.e. converges with small true residual

in RedBlack MpcDagMpc, Unprec MdagM and Schur red black solver for
each of.

DomainWallFermion
MobiusFermion
MobiusZolotarevFermion
ScaledShamirFermion
ScaledShamirZolotarevFermion

benchmarks/Makefile.am

@@ -6,24 +6,24 @@ AM_LDFLAGS = -L$(top_builddir)/lib
 # Test code
 #
 bin_PROGRAMS = \
-	Grid_comms \
-	Grid_memory_bandwidth \
-	Grid_su3 \
-	Grid_wilson \
-	Grid_dwf
+	Benchmark_comms \
+	Benchmark_memory_bandwidth \
+	Benchmark_su3 \
+	Benchmark_wilson \
+	Benchmark_dwf
 
-Grid_comms_SOURCES = Grid_comms.cc
-Grid_comms_LDADD = -lGrid
+Benchmark_comms_SOURCES = Benchmark_comms.cc
+Benchmark_comms_LDADD = -lGrid
 
-Grid_memory_bandwidth_SOURCES = Grid_memory_bandwidth.cc
-Grid_memory_bandwidth_LDADD = -lGrid
+Benchmark_memory_bandwidth_SOURCES = Benchmark_memory_bandwidth.cc
+Benchmark_memory_bandwidth_LDADD = -lGrid
 
-Grid_su3_SOURCES = Grid_su3.cc Grid_su3_test.cc Grid_su3_expr.cc
-Grid_su3_LDADD = -lGrid
+Benchmark_su3_SOURCES = Benchmark_su3.cc Benchmark_su3_test.cc Benchmark_su3_expr.cc
+Benchmark_su3_LDADD = -lGrid
 
-Grid_wilson_SOURCES = Grid_wilson.cc
-Grid_wilson_LDADD = -lGrid
+Benchmark_wilson_SOURCES = Benchmark_wilson.cc
+Benchmark_wilson_LDADD = -lGrid
 
-Grid_dwf_SOURCES = Grid_dwf.cc
-Grid_dwf_LDADD = -lGrid
+Benchmark_dwf_SOURCES = Benchmark_dwf.cc
+Benchmark_dwf_LDADD = -lGrid