diff --git a/config/opal_config_asm.m4 b/config/opal_config_asm.m4
index 7faf25103d..a406c816cc 100644
--- a/config/opal_config_asm.m4
+++ b/config/opal_config_asm.m4
@@ -1004,7 +1004,7 @@ AC_DEFUN([OPAL_CONFIG_ASM],[
         OPAL_ASM_SUPPORT_64BIT=0
         case "${host}" in
         x86_64-*x32)
-            opal_cv_asm_arch="AMD64"
+            opal_cv_asm_arch="X86_64"
             OPAL_ASM_SUPPORT_64BIT=1
             OPAL_GCC_INLINE_ASSIGN='"xaddl %1,%0" : "=m"(ret), "+r"(negone) : "m"(ret)'
             ;;
@@ -1012,7 +1012,7 @@ AC_DEFUN([OPAL_CONFIG_ASM],[
             if test "$ac_cv_sizeof_long" = "4" ; then
                 opal_cv_asm_arch="IA32"
             else
-                opal_cv_asm_arch="AMD64"
+                opal_cv_asm_arch="X86_64"
             fi
             OPAL_ASM_SUPPORT_64BIT=1
             OPAL_GCC_INLINE_ASSIGN='"xaddl %1,%0" : "=m"(ret), "+r"(negone) : "m"(ret)'
@@ -1193,7 +1193,7 @@ AC_MSG_ERROR([Can not continue.])
 
     # Check for RDTSCP support
     result=0
-    AS_IF([test "$opal_cv_asm_arch" = "OPAL_AMD64" || test "$opal_cv_asm_arch" = "OPAL_IA32"],
+    AS_IF([test "$opal_cv_asm_arch" = "OPAL_X86_64" || test "$opal_cv_asm_arch" = "OPAL_IA32"],
           [AC_MSG_CHECKING([for RDTSCP assembly support])
            AC_LANG_PUSH([C])
            AC_TRY_RUN([[
diff --git a/ompi/mca/osc/portals4/osc_portals4_component.c b/ompi/mca/osc/portals4/osc_portals4_component.c
index 96bcd68751..984a74c9d4 100644
--- a/ompi/mca/osc/portals4/osc_portals4_component.c
+++ b/ompi/mca/osc/portals4/osc_portals4_component.c
@@ -3,7 +3,7 @@
  * Copyright (c) 2011-2017 Sandia National Laboratories.  All rights reserved.
  * Copyright (c) 2015      Los Alamos National Security, LLC.  All rights
  *                         reserved.
- * Copyright (c) 2015      Research Organization for Information Science
+ * Copyright (c) 2015-2017 Research Organization for Information Science
  *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  *
@@ -590,7 +590,7 @@ component_select(struct ompi_win_t *win, void **base, size_t size, int disp_unit
 
     module->passive_target_access_epoch = false;
 
-#if OPAL_ASSEMBLY_ARCH == OPAL_AMD64 || OPAL_ASSEMBLY_ARCH == OPAL_IA32
+#if OPAL_ASSEMBLY_ARCH == OPAL_X86_64 || OPAL_ASSEMBLY_ARCH == OPAL_IA32
     *model = MPI_WIN_UNIFIED;
 #else
     *model = MPI_WIN_SEPARATE;
diff --git a/opal/asm/Makefile.am b/opal/asm/Makefile.am
index 829fc98950..73eebed27d 100644
--- a/opal/asm/Makefile.am
+++ b/opal/asm/Makefile.am
@@ -10,6 +10,8 @@
 # Copyright (c) 2004-2005 The Regents of the University of California.
 #                         All rights reserved.
 # Copyright (c) 2011-2014 Cisco Systems, Inc.  All rights reserved.
+# Copyright (c) 2017      Research Organization for Information Science
+#                         and Technology (RIST). All rights reserved.
 # $COPYRIGHT$
 #
 # Additional copyrights may follow
@@ -63,7 +65,7 @@ EXTRA_DIST	= \
 	generate-all-asm.pl \
 	base/aix.conf \
 	base/default.conf \
-	base/AMD64.asm \
+	base/X86_64.asm \
 	base/ARM.asm \
 	base/IA32.asm \
 	base/IA64.asm \
diff --git a/opal/asm/asm-data.txt b/opal/asm/asm-data.txt
index 70d6689e72..198c9f6c88 100644
--- a/opal/asm/asm-data.txt
+++ b/opal/asm/asm-data.txt
@@ -10,6 +10,8 @@
 # Copyright (c) 2004-2005 The Regents of the University of California.
 #                         All rights reserved.
 # Copyright (c) 2014      Intel, Inc. All rights reserved.
+# Copyright (c) 2017      Research Organization for Information Science
+#                         and Technology (RIST). All rights reserved.
 # $COPYRIGHT$
 #
 # Additional copyrights may follow
@@ -34,8 +36,8 @@
 #
 ######################################################################
 
-AMD64	default-.text-.globl-:--.L-@-1-0-1-1-1	amd64-linux
-AMD64	default-.text-.globl-:--.L-@-1-0-1-1-0	amd64-linux-nongas
+X86_64	default-.text-.globl-:--.L-@-1-0-1-1-1	x86_64-linux
+X86_64	default-.text-.globl-:--.L-@-1-0-1-1-0	x86_64-linux-nongas
 
 
 ######################################################################
diff --git a/opal/asm/base/AMD64.asm b/opal/asm/base/X86_64.asm
similarity index 100%
rename from opal/asm/base/AMD64.asm
rename to opal/asm/base/X86_64.asm
diff --git a/opal/include/opal/sys/Makefile.am b/opal/include/opal/sys/Makefile.am
index 24386eaad7..230abe81e7 100644
--- a/opal/include/opal/sys/Makefile.am
+++ b/opal/include/opal/sys/Makefile.am
@@ -13,6 +13,8 @@
 # Copyright (c) 2011      Sandia National Laboratories. All rights reserved.
 # Copyright (c) 2016      Los Alamos National Security, LLC. All rights
 #                         reserved.
+# Copyright (c) 2017      Research Organization for Information Science
+#                         and Technology (RIST). All rights reserved.
 # $COPYRIGHT$
 #
 # Additional copyrights may follow
@@ -29,7 +31,7 @@ headers += \
 	opal/sys/timer.h \
         opal/sys/cma.h
 
-include opal/sys/amd64/Makefile.am
+include opal/sys/x86_64/Makefile.am
 include opal/sys/arm/Makefile.am
 include opal/sys/arm64/Makefile.am
 include opal/sys/ia32/Makefile.am
diff --git a/opal/include/opal/sys/architecture.h b/opal/include/opal/sys/architecture.h
index e9af282934..6341fc354f 100644
--- a/opal/include/opal/sys/architecture.h
+++ b/opal/include/opal/sys/architecture.h
@@ -13,6 +13,8 @@
  * Copyright (c) 2014      Intel, Inc. All rights reserved
  * Copyright (c) 2016      Los Alamos National Security, LLC. All rights
  *                         reserved.
+ * Copyright (c) 2017      Research Organization for Information Science
+ *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -31,7 +33,7 @@
 #define OPAL_UNSUPPORTED    0000
 #define OPAL_IA32           0010
 #define OPAL_IA64           0020
-#define OPAL_AMD64          0030
+#define OPAL_X86_64         0030
 #define OPAL_POWERPC32      0050
 #define OPAL_POWERPC64      0051
 #define OPAL_SPARC          0060
diff --git a/opal/include/opal/sys/atomic.h b/opal/include/opal/sys/atomic.h
index 6a17ae221c..1622d4f830 100644
--- a/opal/include/opal/sys/atomic.h
+++ b/opal/include/opal/sys/atomic.h
@@ -14,6 +14,8 @@
  * Copyright (c) 2011      Sandia National Laboratories. All rights reserved.
  * Copyright (c) 2011-2015 Los Alamos National Security, LLC. All rights
  *                         reserved.
+ * Copyright (c) 2017      Research Organization for Information Science
+ *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -153,8 +155,8 @@ enum {
 #include "opal/sys/gcc_builtin/atomic.h"
 #elif OPAL_ASSEMBLY_BUILTIN == OPAL_BUILTIN_OSX
 #include "opal/sys/osx/atomic.h"
-#elif OPAL_ASSEMBLY_ARCH == OPAL_AMD64
-#include "opal/sys/amd64/atomic.h"
+#elif OPAL_ASSEMBLY_ARCH == OPAL_X86_64
+#include "opal/sys/x86_64/atomic.h"
 #elif OPAL_ASSEMBLY_ARCH == OPAL_ARM
 #include "opal/sys/arm/atomic.h"
 #elif OPAL_ASSEMBLY_ARCH == OPAL_ARM64
diff --git a/opal/include/opal/sys/cma.h b/opal/include/opal/sys/cma.h
index 36e6e51fb3..6304e74950 100644
--- a/opal/include/opal/sys/cma.h
+++ b/opal/include/opal/sys/cma.h
@@ -1,8 +1,10 @@
 /*
- * Copyright (c) 2011-2012      IBM Corporation.  All rights reserved.
- * Copyright (c) 2016           Los Alamos National Security, LLC. All rights
- *                              reserved.
- *
+ * Copyright (c) 2011-2012 IBM Corporation.  All rights reserved.
+ * Copyright (c) 2016      Los Alamos National Security, LLC. All rights
+ *                         reserved.
+ * Copyright (c) 2017      Research Organization for Information Science
+ *                         and Technology (RIST). All rights reserved.
+ * $COPYRIGHT$
  */
 
 /** @file
@@ -35,7 +37,7 @@
 
 /* Cross Memory Attach is so far only supported under linux */
 
-#if OPAL_ASSEMBLY_ARCH == OPAL_AMD64
+#if OPAL_ASSEMBLY_ARCH == OPAL_X86_64
 #define __NR_process_vm_readv 310
 #define __NR_process_vm_writev 311
 #elif OPAL_ASSEMBLY_ARCH == OPAL_IA32
diff --git a/opal/include/opal/sys/timer.h b/opal/include/opal/sys/timer.h
index 5d3042047a..014903dbe0 100644
--- a/opal/include/opal/sys/timer.h
+++ b/opal/include/opal/sys/timer.h
@@ -84,8 +84,8 @@ BEGIN_C_DECLS
 
 #if defined(DOXYGEN)
 /* don't include system-level gorp when generating doxygen files */
-#elif OPAL_ASSEMBLY_ARCH == OPAL_AMD64
-#include "opal/sys/amd64/timer.h"
+#elif OPAL_ASSEMBLY_ARCH == OPAL_X86_64
+#include "opal/sys/x86_64/timer.h"
 #elif OPAL_ASSEMBLY_ARCH == OPAL_ARM
 #include "opal/sys/arm/timer.h"
 #elif OPAL_ASSEMBLY_ARCH == OPAL_ARM64
diff --git a/opal/include/opal/sys/amd64/Makefile.am b/opal/include/opal/sys/x86_64/Makefile.am
similarity index 80%
rename from opal/include/opal/sys/amd64/Makefile.am
rename to opal/include/opal/sys/x86_64/Makefile.am
index 70003691b8..dfdd239239 100644
--- a/opal/include/opal/sys/amd64/Makefile.am
+++ b/opal/include/opal/sys/x86_64/Makefile.am
@@ -9,6 +9,8 @@
 #                         University of Stuttgart.  All rights reserved.
 # Copyright (c) 2004-2005 The Regents of the University of California.
 #                         All rights reserved.
+# Copyright (c) 2017      Research Organization for Information Science
+#                         and Technology (RIST). All rights reserved.
 # $COPYRIGHT$
 #
 # Additional copyrights may follow
@@ -19,5 +21,5 @@
 # This makefile.am does not stand on its own - it is included from opal/include/Makefile.am
 
 headers += \
-	opal/sys/amd64/atomic.h \
-	opal/sys/amd64/timer.h
+	opal/sys/x86_64/atomic.h \
+	opal/sys/x86_64/timer.h
diff --git a/opal/include/opal/sys/amd64/atomic.h b/opal/include/opal/sys/x86_64/atomic.h
similarity index 98%
rename from opal/include/opal/sys/amd64/atomic.h
rename to opal/include/opal/sys/x86_64/atomic.h
index 785924e7f7..ae0bbbbc0b 100644
--- a/opal/include/opal/sys/amd64/atomic.h
+++ b/opal/include/opal/sys/x86_64/atomic.h
@@ -13,7 +13,7 @@
  * Copyright (c) 2007      Sun Microsystems, Inc.  All rights reserverd.
  * Copyright (c) 2012-2014 Los Alamos National Security, LLC. All rights
  *                         reserved.
- * Copyright (c) 2016      Research Organization for Information Science
+ * Copyright (c) 2016-2017 Research Organization for Information Science
  *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  *
@@ -25,7 +25,7 @@
 #define OPAL_SYS_ARCH_ATOMIC_H 1
 
 /*
- * On amd64, we use cmpxchg.
+ * On x86_64, we use cmpxchg.
  */
 
 
diff --git a/opal/include/opal/sys/amd64/timer.h b/opal/include/opal/sys/x86_64/timer.h
similarity index 100%
rename from opal/include/opal/sys/amd64/timer.h
rename to opal/include/opal/sys/x86_64/timer.h
diff --git a/opal/include/opal/sys/amd64/update.sh b/opal/include/opal/sys/x86_64/update.sh
similarity index 100%
rename from opal/include/opal/sys/amd64/update.sh
rename to opal/include/opal/sys/x86_64/update.sh
diff --git a/opal/mca/patcher/base/patcher_base_patch.c b/opal/mca/patcher/base/patcher_base_patch.c
index 7e51dd88fb..8f731f8afb 100644
--- a/opal/mca/patcher/base/patcher_base_patch.c
+++ b/opal/mca/patcher/base/patcher_base_patch.c
@@ -2,6 +2,8 @@
 /*
  * Copyright (c) 2016      Los Alamos National Security, LLC. All rights
  *                         reserved.
+ * Copyright (c) 2017      Research Organization for Information Science
+ *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -100,7 +102,7 @@ static void flush_and_invalidate_cache (unsigned long a)
         /* does not work with AMD processors */
         __asm__ volatile("mfence;clflush %0;mfence" : :"m" (*(char*)a));
     }
-#elif OPAL_ASSEMBLY_ARCH == OPAL_AMD64
+#elif OPAL_ASSEMBLY_ARCH == OPAL_X86_64
     __asm__ volatile("mfence;clflush %0;mfence" : :"m" (*(char*)a));
 #elif OPAL_ASSEMBLY_ARCH == OPAL_IA64
     __asm__ volatile ("fc %0;; sync.i;; srlz.i;;" : : "r"(a) : "memory");
diff --git a/opal/mca/patcher/overwrite/patcher_overwrite_module.c b/opal/mca/patcher/overwrite/patcher_overwrite_module.c
index 2ab943bec9..210b8ae0e0 100644
--- a/opal/mca/patcher/overwrite/patcher_overwrite_module.c
+++ b/opal/mca/patcher/overwrite/patcher_overwrite_module.c
@@ -3,6 +3,8 @@
  * Copyright (c) 2016      Los Alamos National Security, LLC. All rights
  *                         reserved.
  * Copyright (c) 2016      IBM Corporation.  All rights reserved.
+ * Copyright (c) 2017      Research Organization for Information Science
+ *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -28,7 +30,7 @@
 #include <dlfcn.h>
 #include <assert.h>
 
-#if (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_AMD64)
+#if (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_X86_64)
 
 #if (OPAL_ASSEMBLY_ARCH == OPAL_IA64)
 
@@ -91,7 +93,7 @@ static int mca_patcher_overwrite_apply_patch (mca_patcher_base_patch_t *patch)
         patch->patch_data_size = 5;
         *(unsigned char *)(patch->patch_data+0) = 0xe9;
         *(unsigned int *) (patch->patch_data+1) = (unsigned int)(func_new_addr - patch->patch_orig - 5);
-#elif (OPAL_ASSEMBLY_ARCH == OPAL_AMD64)
+#elif (OPAL_ASSEMBLY_ARCH == OPAL_X86_64)
         patch->patch_data_size = 13;
         *(unsigned short*)(patch->patch_data + 0) = 0xbb49;
         *(unsigned long* )(patch->patch_data + 2) = (unsigned long) func_new_addr;
diff --git a/oshmem/shmem/c/shmem_clear_cache_inv.c b/oshmem/shmem/c/shmem_clear_cache_inv.c
index ca07826e47..fa9946a3fb 100644
--- a/oshmem/shmem/c/shmem_clear_cache_inv.c
+++ b/oshmem/shmem/c/shmem_clear_cache_inv.c
@@ -2,6 +2,8 @@
  * Copyright (c) 2013      Mellanox Technologies, Inc.
  *                         All rights reserved.
  * Copyright (c) 2014      Intel, Inc. All rights reserved.
+ * Copyright (c) 2017      Research Organization for Information Science
+ *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -26,7 +28,7 @@
 
 void shmem_clear_cache_inv(void)
 {
-#if (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_AMD64)
+#if (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_X86_64)
     do {SHMEM_API_VERBOSE(10,"shmem_clear_cache_inv is not supported by the current CPU architecture");}while (0);
 #else
     /* another implementation */
diff --git a/oshmem/shmem/c/shmem_clear_cache_line_inv.c b/oshmem/shmem/c/shmem_clear_cache_line_inv.c
index fed9045b70..e86a643ba6 100644
--- a/oshmem/shmem/c/shmem_clear_cache_line_inv.c
+++ b/oshmem/shmem/c/shmem_clear_cache_line_inv.c
@@ -2,6 +2,8 @@
  * Copyright (c) 2013      Mellanox Technologies, Inc.
  *                         All rights reserved.
  * Copyright (c) 2014      Intel, Inc. All rights reserved.
+ * Copyright (c) 2017      Research Organization for Information Science
+ *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -26,7 +28,7 @@
 
 void shmem_clear_cache_line_inv(void *target)
 {
-#if (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_AMD64)
+#if (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_X86_64)
     do {SHMEM_API_VERBOSE(10,"shmem_clear_cache_line_inv is not supported by the current CPU architecture");}while (0);
 #else
     /* another implementation */
diff --git a/oshmem/shmem/c/shmem_set_cache_inv.c b/oshmem/shmem/c/shmem_set_cache_inv.c
index 0e61a46278..4ef60d6041 100644
--- a/oshmem/shmem/c/shmem_set_cache_inv.c
+++ b/oshmem/shmem/c/shmem_set_cache_inv.c
@@ -2,6 +2,8 @@
  * Copyright (c) 2013      Mellanox Technologies, Inc.
  *                         All rights reserved.
  * Copyright (c) 2014      Intel, Inc. All rights reserved.
+ * Copyright (c) 2017      Research Organization for Information Science
+ *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -26,7 +28,7 @@
 
 void shmem_set_cache_inv(void)
 {
-#if (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_AMD64)
+#if (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_X86_64)
     do {SHMEM_API_VERBOSE(10,"shmem_set_cache_inv is not supported by the current CPU architecture");}while (0);
 #else
     /* another implementation */
diff --git a/oshmem/shmem/c/shmem_set_cache_line_inv.c b/oshmem/shmem/c/shmem_set_cache_line_inv.c
index 84d377c0b0..27bc4ae365 100644
--- a/oshmem/shmem/c/shmem_set_cache_line_inv.c
+++ b/oshmem/shmem/c/shmem_set_cache_line_inv.c
@@ -2,6 +2,8 @@
  * Copyright (c) 2013      Mellanox Technologies, Inc.
  *                         All rights reserved.
  * Copyright (c) 2014      Intel, Inc. All rights reserved.
+ * Copyright (c) 2017      Research Organization for Information Science
+ *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -26,7 +28,7 @@
 
 void shmem_set_cache_line_inv(void *target)
 {
-#if (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_AMD64)
+#if (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_X86_64)
     do {SHMEM_API_VERBOSE(10,"shmem_set_cache_line_inv is not supported by the current CPU architecture");}while (0);
 #else
     /* another implementation */
diff --git a/oshmem/shmem/c/shmem_udcflush.c b/oshmem/shmem/c/shmem_udcflush.c
index d80be733d2..f3d1f08d0d 100644
--- a/oshmem/shmem/c/shmem_udcflush.c
+++ b/oshmem/shmem/c/shmem_udcflush.c
@@ -2,6 +2,8 @@
  * Copyright (c) 2013      Mellanox Technologies, Inc.
  *                         All rights reserved.
  * Copyright (c) 2014      Intel, Inc. All rights reserved.
+ * Copyright (c) 2017      Research Organization for Information Science
+ *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -25,7 +27,7 @@
 
 void shmem_udcflush(void)
 {
-#if (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_AMD64)
+#if (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_X86_64)
     do {SHMEM_API_VERBOSE(10,"shmem_udcflush is not supported by the current CPU architecture");}while (0);
 #else
     /* another implementation */
diff --git a/oshmem/shmem/c/shmem_udcflush_line.c b/oshmem/shmem/c/shmem_udcflush_line.c
index f8a23eef2d..85ce43caab 100644
--- a/oshmem/shmem/c/shmem_udcflush_line.c
+++ b/oshmem/shmem/c/shmem_udcflush_line.c
@@ -2,6 +2,8 @@
  * Copyright (c) 2013      Mellanox Technologies, Inc.
  *                         All rights reserved.
  * Copyright (c) 2014      Intel, Inc. All rights reserved.
+ * Copyright (c) 2017      Research Organization for Information Science
+ *                         and Technology (RIST). All rights reserved.
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -24,7 +26,7 @@
 
 void shmem_udcflush_line(void *target)
 {
-#if (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_AMD64)
+#if (OPAL_ASSEMBLY_ARCH == OPAL_IA64) || (OPAL_ASSEMBLY_ARCH == OPAL_IA32) || (OPAL_ASSEMBLY_ARCH == OPAL_X86_64)
     do {SHMEM_API_VERBOSE(10,"shmem_udcflush_line is not supported by the current CPU architecture");}while (0);
 #else
     /* another implementation */