diff --git a/BUILD.md b/BUILD.md
index f08ea5c320..6c91042b78 100644
--- a/BUILD.md
+++ b/BUILD.md
@@ -151,7 +151,7 @@ endif()
   * Default: OFF
 * KokkosKernels_ENABLE_PERFTESTS: BOOL
   * Whether to build performance tests.
-  * Default: OFF
+  * Default: ON
 * KokkosKernels_ENABLE_TESTS_AND_PERFSUITE: BOOL
   * Whether to build performance tests and suite.
   * Default: OFF
diff --git a/CMakeLists.txt b/CMakeLists.txt
index fece059855..2bb14a5892 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -67,7 +67,7 @@ IF (NOT KOKKOSKERNELS_HAS_TRILINOS)
   )
   KOKKOSKERNELS_ADD_OPTION(
           "ENABLE_PERFTESTS"
-          OFF
+          ON
           BOOL
           "Whether to build performance tests. Default: OFF"
   )
diff --git a/cm_generate_makefile.bash b/cm_generate_makefile.bash
index ee195ca0fe..c8d238fc84 100755
--- a/cm_generate_makefile.bash
+++ b/cm_generate_makefile.bash
@@ -336,7 +336,10 @@ display_help_text() {
       echo "--gcc-toolchain=/Path/To/GccRoot:  Set the gcc toolchain to use with clang (e.g. /usr)" 
       echo "--kokkos-make-j=[NUM]:        Set -j parallel level for kokkos install"
       echo "                                Default: j == 4"
-      echo "--enable-tests: build Kokkos Kernels unit and performance tests"
+      echo "--enable-tests: build Kokkos Kernels unit tests"
+      echo "--disable-tests: Do not build Kokkos Kernels unit tests"
+      echo "--disable-perftests: Do not build Kokkos Kernels performance tests"
+      echo "--enable-perftests: build Kokkos Kernels performance tests (default)"
       echo "--deprecated-code             Enable deprecated code (disabled by default)"
       echo "--enable-perfsuite: build Kokkos Kernels performance tests with
 RAJAPerf Suite"
@@ -349,6 +352,7 @@ KOKKOS_INSTALL_PATH=""
 KOKKOS_DO_TESTS=OFF
 KOKKOS_DO_EXAMPLES=OFF
 KOKKOSKERNELS_DO_TESTS=ON
+KOKKOSKERNELS_DO_PERFTESTS=ON
 KOKKOSKERNELS_DO_PERFSUITE=OFF
 KOKKOSKERNELS_DO_EXAMPLES=ON
 
@@ -520,6 +524,12 @@ do
     --disable-tests)
       KOKKOSKERNELS_DO_TESTS=OFF
       ;;
+    --disable-perftests)
+      KOKKOSKERNELS_DO_PERFTESTS=OFF
+      ;;
+    --enable-perftests)
+      KOKKOSKERNELS_DO_PERFTESTS=ON
+      ;;
     --enable-examples)
       # This is the default
       KOKKOSKERNELS_DO_EXAMPLES=ON
@@ -773,7 +783,7 @@ cd $STORE_KOKKOSKERNELS_BUILD_PATH
 
 # Configure kokkos-kernels
 echo ""
-echo cmake $COMPILER_CMD -DKokkos_DIR="${KOKKOS_FIND_PATH}" -DCMAKE_CXX_FLAGS="${KOKKOS_CXXFLAGS}" -DCMAKE_INSTALL_PREFIX="${PREFIX}" -DKokkosKernels_ENABLE_TESTS_AND_PERFSUITE=${KOKKOSKERNELS_DO_PERFSUITE} -DKokkosKernels_ENABLE_TESTS=${KOKKOSKERNELS_DO_TESTS} -DKokkosKernels_ENABLE_EXAMPLES:BOOL=${KOKKOSKERNELS_DO_EXAMPLES} ${KOKKOSKERNELS_SCALARS_CMD} ${KOKKOSKERNELS_ORDINALS_CMD} ${KOKKOSKERNELS_OFFSETS_CMD} ${KOKKOSKERNELS_LAYOUTS_CMD} ${KOKKOSKERNELS_TPLS_CMD} ${KOKKOSKERNELS_USER_TPL_PATH_CMD} ${KOKKOSKERNELS_USER_TPL_LIBNAME_CMD} ${KOKKOSKERNELS_EXTRA_LINKER_FLAGS_CMD} ${KOKKOSKERNELS_BUILDTYPE_CMD} -DBUILD_SHARED_LIBS=${BUILD_SHARED_LIBRARIES} ${KOKKOSKERNELS_SPACES_CMD} ${KERNELS_DEFAULT_ETI_OPTION} ${KOKKOSKERNELS_PATH}
+echo cmake $COMPILER_CMD -DKokkos_DIR="${KOKKOS_FIND_PATH}" -DCMAKE_CXX_FLAGS="${KOKKOS_CXXFLAGS}" -DCMAKE_INSTALL_PREFIX="${PREFIX}" -DKokkosKernels_ENABLE_TESTS_AND_PERFSUITE=${KOKKOSKERNELS_DO_PERFSUITE} -DKokkosKernels_ENABLE_TESTS=${KOKKOSKERNELS_DO_TESTS} -DKokkosKernels_ENABLE_PERFTESTS=${KOKKOSKERNELS_DO_PERFTESTS} -DKokkosKernels_ENABLE_EXAMPLES:BOOL=${KOKKOSKERNELS_DO_EXAMPLES} ${KOKKOSKERNELS_SCALARS_CMD} ${KOKKOSKERNELS_ORDINALS_CMD} ${KOKKOSKERNELS_OFFSETS_CMD} ${KOKKOSKERNELS_LAYOUTS_CMD} ${KOKKOSKERNELS_TPLS_CMD} ${KOKKOSKERNELS_USER_TPL_PATH_CMD} ${KOKKOSKERNELS_USER_TPL_LIBNAME_CMD} ${KOKKOSKERNELS_EXTRA_LINKER_FLAGS_CMD} ${KOKKOSKERNELS_BUILDTYPE_CMD} -DBUILD_SHARED_LIBS=${BUILD_SHARED_LIBRARIES} ${KOKKOSKERNELS_SPACES_CMD} ${KERNELS_DEFAULT_ETI_OPTION} ${KOKKOSKERNELS_PATH}
 echo ""
-cmake $COMPILER_CMD -DKokkos_DIR="${KOKKOS_FIND_PATH}" -DCMAKE_CXX_FLAGS="${KOKKOS_CXXFLAGS//\"}" -DCMAKE_INSTALL_PREFIX="${PREFIX}" -DKokkosKernels_ENABLE_TESTS_AND_PERFSUITE=${KOKKOSKERNELS_DO_PERFSUITE} -DKokkosKernels_ENABLE_TESTS=${KOKKOSKERNELS_DO_TESTS} -DKokkosKernels_ENABLE_EXAMPLES:BOOL=${KOKKOSKERNELS_DO_EXAMPLES} ${KOKKOSKERNELS_SCALARS_CMD} ${KOKKOSKERNELS_ORDINALS_CMD} ${KOKKOSKERNELS_OFFSETS_CMD} ${KOKKOSKERNELS_LAYOUTS_CMD} ${KOKKOSKERNELS_TPLS_CMD} ${KOKKOSKERNELS_USER_TPL_PATH_CMD} ${KOKKOSKERNELS_USER_TPL_LIBNAME_CMD} ${KOKKOSKERNELS_EXTRA_LINKER_FLAGS_CMD} ${KOKKOSKERNELS_BUILDTYPE_CMD} -DBUILD_SHARED_LIBS=${BUILD_SHARED_LIBRARIES} ${KOKKOSKERNELS_SPACES_CMD} ${KERNELS_DEFAULT_ETI_OPTION} ${KOKKOSKERNELS_PATH}
+cmake $COMPILER_CMD -DKokkos_DIR="${KOKKOS_FIND_PATH}" -DCMAKE_CXX_FLAGS="${KOKKOS_CXXFLAGS//\"}" -DCMAKE_INSTALL_PREFIX="${PREFIX}" -DKokkosKernels_ENABLE_TESTS_AND_PERFSUITE=${KOKKOSKERNELS_DO_PERFSUITE} -DKokkosKernels_ENABLE_TESTS=${KOKKOSKERNELS_DO_TESTS} -DKokkosKernels_ENABLE_PERFTESTS=${KOKKOSKERNELS_DO_PERFTESTS} -DKokkosKernels_ENABLE_EXAMPLES:BOOL=${KOKKOSKERNELS_DO_EXAMPLES} ${KOKKOSKERNELS_SCALARS_CMD} ${KOKKOSKERNELS_ORDINALS_CMD} ${KOKKOSKERNELS_OFFSETS_CMD} ${KOKKOSKERNELS_LAYOUTS_CMD} ${KOKKOSKERNELS_TPLS_CMD} ${KOKKOSKERNELS_USER_TPL_PATH_CMD} ${KOKKOSKERNELS_USER_TPL_LIBNAME_CMD} ${KOKKOSKERNELS_EXTRA_LINKER_FLAGS_CMD} ${KOKKOSKERNELS_BUILDTYPE_CMD} -DBUILD_SHARED_LIBS=${BUILD_SHARED_LIBRARIES} ${KOKKOSKERNELS_SPACES_CMD} ${KERNELS_DEFAULT_ETI_OPTION} ${KOKKOSKERNELS_PATH}
 
diff --git a/scripts/cm_test_all_sandia b/scripts/cm_test_all_sandia
index 9337bb001a..a4b0651ef4 100755
--- a/scripts/cm_test_all_sandia
+++ b/scripts/cm_test_all_sandia
@@ -80,6 +80,10 @@ print_help() {
   echo "--with-spaces=SPACES:       Set spaces to be instantiated."
   echo "                                Options: hostspace, cudaspace, cudauvmspace"
   echo ""
+  echo "--disable-perftests:  Do not build perftests for Kokkos Kernels"
+  echo ""
+  echo "--enable-perftests:  build perftests for Kokkos Kernels (default)"
+  echo ""
 
   echo "ARGS: list of expressions matching compilers to test"
   echo "  supported compilers sems"
@@ -217,6 +221,7 @@ TEST_SPACK=False
 SKIP_HWLOC=False
 SPOT_CHECK=False
 NO_DEFAULT_ETI=False
+ENABLE_PERFTESTS=True
 
 PRINT_HELP=False
 OPT_FLAG=""
@@ -376,6 +381,12 @@ do
     --no-default-eti*)
       NO_DEFAULT_ETI=True
       ;;
+    --disable-perftests*)
+      ENABLE_PERFTESTS=False
+      ;;
+    --enable-perftests*)
+      ENABLE_PERFTESTS=True
+      ;;
     --with-spaces*)
       KOKKOSKERNELS_SPACES="${key#*=}"
       ;;
@@ -731,6 +742,7 @@ elif [ "$MACHINE" = "weaver" ]; then
 
   GCC72_MODULE_TPL_LIST="cmake/3.19.3,<COMPILER_NAME>/<COMPILER_VERSION>,openblas/0.2.20/gcc/7.2.0"
   GCC74_MODULE_TPL_LIST="cmake/3.19.3,<COMPILER_NAME>/<COMPILER_VERSION>,openblas/0.2.20/gcc/7.2.0,gcc/7.4.0"
+  GCC93_MODULE_TPL_LIST="cmake/3.19.3,<COMPILER_NAME>/<COMPILER_VERSION>,openblas/0.3.20/gcc/9.3.0,gcc/9.3.0"
   CUDA_MODULE_TPL_LIST="cmake/3.19.3,<COMPILER_NAME>/<COMPILER_VERSION>,gcc/7.2.0,netlib/3.8.0/gcc/7.2.0"
   CUDA10_MODULE_TPL_LIST="cmake/3.19.3,<COMPILER_NAME>/<COMPILER_VERSION>,gcc/7.2.0,openblas/0.2.20/gcc/7.2.0"
   # Cuda/11 modules available only on the dev queue (rhel8 OS); gcc/8.3.1 load by default
@@ -751,6 +763,7 @@ elif [ "$MACHINE" = "weaver" ]; then
                "cuda/9.2.88 $CUDA_MODULE_LIST "Cuda_Serial" ${KOKKOS_PATH}/bin/nvcc_wrapper $CUDA_WARNING_FLAGS"
                "cuda/10.1.243 $CUDA10_MODULE_LIST "Cuda_OpenMP" ${KOKKOS_PATH}/bin/nvcc_wrapper $CUDA_WARNING_FLAGS"
                "cuda/11.2.2 $CUDA11_MODULE_LIST "Cuda_OpenMP" ${KOKKOS_PATH}/bin/nvcc_wrapper $CUDA_WARNING_FLAGS"
+               "gcc/9.3.0 $BASE_MODULE_LIST $GCC_BUILD_LIST g++ $GCC_WARNING_FLAGS"
     )
   elif [ "$SPOT_CHECK_TPLS" = "True" ]; then
     # Format: (compiler module-list build-list exe-name warning-flag)
@@ -758,6 +771,7 @@ elif [ "$MACHINE" = "weaver" ]; then
                "gcc/7.4.0 $GCC74_MODULE_TPL_LIST "OpenMP" g++ $GCC_WARNING_FLAGS"
                "cuda/9.2.88 $CUDA_MODULE_TPL_LIST "Cuda_OpenMP" ${KOKKOS_PATH}/bin/nvcc_wrapper $CUDA_WARNING_FLAGS"
                "cuda/10.1.243 $CUDA10_MODULE_TPL_LIST "Cuda_Serial" ${KOKKOS_PATH}/bin/nvcc_wrapper $CUDA_WARNING_FLAGS"
+               "gcc/9.3.0 $GCC93_MODULE_TPL_LIST "OpenMP,Serial" g++ $GCC_WARNING_FLAGS"
     )
   else
     # Format: (compiler module-list build-list exe-name warning-flag)
@@ -856,6 +870,7 @@ elif [ "$MACHINE" = "blake" ]; then
   ONEAPI_WARNING_FLAGS=""
 
   GCC72_MODULE_TPL_LIST="$BASE_MODULE_LIST,openblas/0.2.20/gcc/7.2.0"
+  GCC102_MODULE_TPL_LIST="$BASE_MODULE_LIST,openblas/0.3.13/gcc/10.2.0"
 
   if [ "$SPOT_CHECK" = "True" ]; then
       # Format: (compiler module-list build-list exe-name warning-flag)
@@ -866,6 +881,8 @@ elif [ "$MACHINE" = "blake" ]; then
                "gcc/7.2.0 $BASE_MODULE_LIST "Threads_Serial,OpenMP" g++ $GCC_WARNING_FLAGS"
                "clang/10.0.1 $BASE_MODULE_LIST "Threads_Serial" clang++ $CLANG_WARNING_FLAGS"
                "intel/19.5.281 $BASE_MODULE_LIST_INTEL "OpenMP,Threads" icpc $INTEL_WARNING_FLAGS"
+               "gcc/10.2.0 $BASE_MODULE_LIST "Threads_Serial,OpenMP" g++ $GCC_WARNING_FLAGS"
+               "gcc/11.2.0 $BASE_MODULE_LIST "Threads_Serial,OpenMP" g++ $GCC_WARNING_FLAGS"
     )
   elif [ "$SPOT_CHECK_TPLS" = "True" ]; then
       # Format: (compiler module-list build-list exe-name warning-flag)
@@ -874,6 +891,7 @@ elif [ "$MACHINE" = "blake" ]; then
     COMPILERS=("intel/18.1.163 $BASE_MODULE_LIST_INTEL "OpenMP,Threads" icpc $INTEL_WARNING_FLAGS"
                "gcc/7.2.0 $GCC72_MODULE_TPL_LIST "OpenMP_Serial" g++ $GCC_WARNING_FLAGS"
                "intel/19.5.281 $BASE_MODULE_LIST_INTEL "OpenMP,Threads" icpc $INTEL_WARNING_FLAGS"
+               "gcc/10.2.0 $GCC102_MODULE_TPL_LIST "OpenMP_Serial" g++ $GCC_WARNING_FLAGS"
     )
   else
     COMPILERS=("intel/17.4.196 $BASE_MODULE_LIST_INTEL $INTEL_BUILD_LIST icpc $INTEL_WARNING_FLAGS"
@@ -1344,6 +1362,10 @@ single_build_and_test() {
     local extra_args="$extra_args --no-default-eti"
   fi
 
+  if [ "${ENABLE_PERFTESTS}" = "False" ]; then
+    local extra_args="$extra_args --disable-perftests"
+  fi
+
 
   echo "  Starting job $desc"