diff --git a/Makefile.power b/Makefile.power
index beb311945..ea84f5945 100644
--- a/Makefile.power
+++ b/Makefile.power
@@ -34,8 +34,11 @@ ifeq ($(USE_OPENMP), 1)
 COMMON_OPT += -Ofast -mcpu=power8 -mtune=power8 -mvsx -malign-power -DUSE_OPENMP -fno-fast-math -fopenmp
 FCOMMON_OPT += -O2 -frecursive -mcpu=power8 -mtune=power8 -malign-power -DUSE_OPENMP -fno-fast-math -fopenmp
 else
-COMMON_OPT += -Ofast -mcpu=power8 -mtune=power8 -mvsx -malign-power -fno-fast-math
-FCOMMON_OPT += -O2 -frecursive -mcpu=power8 -mtune=power8 -malign-power -fno-fast-math
+COMMON_OPT += -Ofast -mcpu=power8 -mtune=power8 -mvsx -malign-power -fno-fast-math 
+FCOMMON_OPT += -O2 -frecursive -mcpu=power8 -mtune=power8 -malign-power -fno-fast-math 
+ifeq ($(OSNAME), AIX)
+FCOMMON_OPT += -O1 -frecursive -mcpu=power8 -mtune=power8 -malign-power -fno-fast-math 
+endif
 endif
 endif
 
@@ -78,6 +81,9 @@ CCOMMON_OPT	+= -mpowerpc64 -maix64
 ifeq ($(COMPILER_F77), g77)
 FCOMMON_OPT	+= -mpowerpc64 -maix64
 endif
+ifeq ($(F_COMPILER), GFORTRAN)
+FCOMMON_OPT	+= -mpowerpc64 -maix64
+endif
 ifeq ($(COMPILER_F77), xlf)
 FCOMMON_OPT	+= -q64
 endif
diff --git a/Makefile.system b/Makefile.system
index 61ae264bf..4f17c25b9 100644
--- a/Makefile.system
+++ b/Makefile.system
@@ -109,6 +109,9 @@ endif
 ifeq ($(TARGET), ARMV8)
 GETARCH_FLAGS := -DFORCE_ARMV7
 endif
+ifeq ($(TARGET), POWER8)
+GETARCH_FLAGS := -DFORCE_POWER6
+endif
 endif
 
 
diff --git a/c_check b/c_check
index 8234c2081..dd700b8b4 100644
--- a/c_check
+++ b/c_check
@@ -6,6 +6,7 @@
 # Checking cross compile
 $hostos   = `uname -s | sed -e s/\-.*//`;    chop($hostos);
 $hostarch = `uname -m | sed -e s/i.86/x86/`;chop($hostarch);
+$hostarch = `uname -p` if ($hostos eq "AIX");
 $hostarch = "x86_64" if ($hostarch eq "amd64");
 $hostarch = "arm" if ($hostarch =~ /^arm.*/);
 $hostarch = "arm64" if ($hostarch eq "aarch64");
diff --git a/cpuid_power.c b/cpuid_power.c
index b36aa4945..8f578d68f 100644
--- a/cpuid_power.c
+++ b/cpuid_power.c
@@ -57,7 +57,7 @@
 #define CPUTYPE_PPCG4	   7
 #define CPUTYPE_POWER8     8
 #define CPUTYPE_POWER9     9
-#define CPUTYPE_POWER10    10
+#define CPUTYPE_POWER10   10
 
 char *cpuname[] = {
   "UNKNOWN",
@@ -83,8 +83,8 @@ char *lowercpuname[] = {
   "cell",
   "ppcg4",
   "power8",
-  "power9",
-  "power10"
+  "power9",	
+  "power10"	
 };
 
 char *corename[] = {
@@ -97,8 +97,8 @@ char *corename[] = {
   "CELL",
   "PPCG4",
   "POWER8",
-  "POWER9",
-  "POWER10"
+  "POWER9",  	
+  "POWER10"   	
 };
 
 int detect(void){
@@ -154,17 +154,17 @@ int detect(void){
 
   pclose(infile);
 
-  if (!strncasecmp(p, "POWER3", 6)) return CPUTYPE_POWER3;
-  if (!strncasecmp(p, "POWER4", 6)) return CPUTYPE_POWER4;
-  if (!strncasecmp(p, "PPC970", 6)) return CPUTYPE_PPC970;
-  if (!strncasecmp(p, "POWER5", 6)) return CPUTYPE_POWER5;
-  if (!strncasecmp(p, "POWER6", 6)) return CPUTYPE_POWER6;
-  if (!strncasecmp(p, "POWER7", 6)) return CPUTYPE_POWER6;
-  if (!strncasecmp(p, "POWER8", 6)) return CPUTYPE_POWER8;
-  if (!strncasecmp(p, "POWER9", 6)) return CPUTYPE_POWER9;
-  if (!strncasecmp(p, "POWER10", 7)) return CPUTYPE_POWER10;
-  if (!strncasecmp(p, "Cell",   4)) return CPUTYPE_CELL;
-  if (!strncasecmp(p, "7447",   4)) return CPUTYPE_PPCG4;
+  if (strstr(p, "POWER3")) return CPUTYPE_POWER3;
+  if (strstr(p, "POWER4")) return CPUTYPE_POWER4;
+  if (strstr(p, "PPC970")) return CPUTYPE_PPC970;
+  if (strstr(p, "POWER5")) return CPUTYPE_POWER5;
+  if (strstr(p, "POWER6")) return CPUTYPE_POWER6;
+  if (strstr(p, "POWER7")) return CPUTYPE_POWER6;
+  if (strstr(p, "POWER8")) return CPUTYPE_POWER8;
+  if (strstr(p, "POWER9")) return CPUTYPE_POWER9;
+  if (strstr(p, "POWER10")) return CPUTYPE_POWER10;
+  if (strstr(p, "Cell")) return CPUTYPE_CELL;
+  if (strstr(p, "7447")) return CPUTYPE_PPCG4;
   return CPUTYPE_POWER5;
 #endif
 
diff --git a/getarch.c b/getarch.c
index 164947f3e..2cdf77259 100644
--- a/getarch.c
+++ b/getarch.c
@@ -90,11 +90,16 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <sys/sysinfo.h>
 #include <unistd.h>
 #endif
+#if defined(AIX)
+#include <sys/sysinfo.h>
+#endif
 
+#if defined(__x86_64__) || defined(_M_X64)
 #if (( defined(__GNUC__)  && __GNUC__   > 6 && defined(__AVX2__)) || (defined(__clang__) && __clang_major__ >= 6))
 #else
 #define NO_AVX512
 #endif
+#endif
 /* #define FORCE_P2		*/
 /* #define FORCE_KATMAI		*/
 /* #define FORCE_COPPERMINE	*/
@@ -1297,6 +1302,11 @@ static int get_num_cores(void) {
   sysctl(m, 2, &count, &len, NULL, 0);
 
   return count;
+
+#elif defined(AIX)
+  //returns the number of processors which are currently online
+  return sysconf(_SC_NPROCESSORS_ONLN);
+
 #else
   return 2;
 #endif
diff --git a/kernel/Makefile.L3 b/kernel/Makefile.L3
index 86772cb22..dfdaf5cf4 100644
--- a/kernel/Makefile.L3
+++ b/kernel/Makefile.L3
@@ -514,7 +514,7 @@ $(KDIR)$(SGEMMONCOPYOBJ) : $(KERNELDIR)/$(SGEMMONCOPY)
 
 $(KDIR)$(SGEMMOTCOPYOBJ) : $(KERNELDIR)/$(SGEMMOTCOPY)
 ifeq ($(OS), AIX)
-	$(CC) $(CFLAGS) -S -UDOUBLE -UCOMPLEX $< -o - > sgemmotcopy.s	
+	$(CC) $(CFLAGS) -S -UDOUBLE -UCOMPLEX $< -o - > sgemmotcopy.s
 	m4 sgemmotcopy.s > sgemmotcopy_nomacros.s
 	$(CC) $(CFLAGS) -c -UDOUBLE -UCOMPLEX sgemmotcopy_nomacros.s -o $@
 	rm sgemmotcopy.s sgemmotcopy_nomacros.s
@@ -530,7 +530,7 @@ $(KDIR)$(SGEMMINCOPYOBJ) : $(KERNELDIR)/$(SGEMMINCOPY)
 
 $(KDIR)$(SGEMMITCOPYOBJ) : $(KERNELDIR)/$(SGEMMITCOPY)
 ifeq ($(OS), AIX)
-	$(CC) $(CFLAGS) -S -UDOUBLE -UCOMPLEX $< -o - > sgemmitcopy.s	
+	$(CC) $(CFLAGS) -S -UDOUBLE -UCOMPLEX $< -o - > sgemmitcopy.s
 	m4 sgemmitcopy.s > sgemmitcopy_nomacros.s
 	$(CC) $(CFLAGS) -c -UDOUBLE -UCOMPLEX sgemmitcopy_nomacros.s -o $@
 	rm sgemmitcopy.s sgemmitcopy_nomacros.s
diff --git a/utest/Makefile b/utest/Makefile
index 0b9892411..31d4ccf00 100644
--- a/utest/Makefile
+++ b/utest/Makefile
@@ -34,6 +34,9 @@ endif
 ifeq ($(C_COMPILER), PGI)
 OBJS = utest_main2.o
 endif
+ifeq ($(OSNAME), AIX)
+OBJS = utest_main2.o
+endif
 
 all : run_test