Fix compilation when INTERNAL_LOOP_NTIMES is not set and create avx512 directory

Signed-off-by: Rafael Ravedutti <rafaelravedutti@gmail.com>

src/force.c

@@ -27,11 +27,6 @@
 #include <parameter.h>
 #include <atom.h>
 
-// Number of times to compute the most internal loop
-#ifndef INTERNAL_LOOP_NTIMES
-#define INTERNAL_LOOP_NTIMES    1
-#endif
-
 double computeForce(Parameter *param, Atom *atom, Neighbor *neighbor) {
     int Nlocal = atom->Nlocal;
     int* neighs;

src/includes/parameter.h

@@ -29,6 +29,11 @@
 #define MD_FLOAT double
 #endif
 
+// Number of times to compute the most internal loop
+#ifndef INTERNAL_LOOP_NTIMES
+#define INTERNAL_LOOP_NTIMES 1
+#endif
+
 typedef struct {
     MD_FLOAT epsilon;
     MD_FLOAT sigma6;