[OpenMP] Add PGI compiler support

CHANGELOG.md

@@ -8,7 +8,7 @@ All notable changes to this project will be documented in this file.
 - Kokkos list CLI argument shows some information about which device will be used.
 - OpenMP GNU compiler now uses native target flag.
 - Support CSV output for Triad only running mode.
-- NEC compiler option for OpenMP version.
+- NEC and PGI compiler option for OpenMP version.
 
 ### Changed
 - Update SYCL implementation to SYCL 1.2.1 interface.

OpenMP.make

@@ -3,7 +3,7 @@ ifndef COMPILER
 define compiler_help
 Set COMPILER to change flags (defaulting to GNU).
 Available compilers are:
-  CLANG CRAY GNU INTEL XL NEC
+  CLANG CRAY GNU INTEL XL PGI NEC
 
 endef
 $(info $(compiler_help))
@@ -26,6 +26,7 @@ COMPILER_INTEL = icpc
 COMPILER_CRAY = CC
 COMPILER_CLANG = clang++
 COMPILER_XL = xlc++
+COMPILER_PGI = pgc++
 COMPILER_NEC = /opt/nec/ve/bin/nc++
 CXX = $(COMPILER_$(COMPILER))
 
@@ -34,6 +35,7 @@ FLAGS_INTEL = -O3 -std=c++11 -xHOST -qopt-streaming-stores=always
 FLAGS_CRAY = -O3 -hstd=c++11
 FLAGS_CLANG = -O3 -std=c++11
 FLAGS_XL = -O5 -qarch=pwr8 -qtune=pwr8 -std=c++11
+FLAGS_PGI = -O3 -std=c++11
 FLAGS_NEC = -O4 -finline -std=c++11
 CXXFLAGS = $(FLAGS_$(COMPILER))
 
@@ -43,6 +45,7 @@ OMP_INTEL_CPU = -qopenmp
 OMP_CRAY_CPU  = -homp
 OMP_CLANG_CPU = -fopenmp=libomp
 OMP_XL_CPU = -qsmp=omp -qthreaded
+OMP_PGI_CPU = -mp
 OMP_NEC_CPU = -fopenmp
 
 # OpenMP flags for NVIDIA