prefetch.hpp

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#ifdef __GNUC__
#define CACHELINE_BYTES 64
inline void prefetch(const char *addr, int sz){
   const int Nlines = sz/CACHELINE_BYTES+1;
   for (int c=0; c<Nlines; c++) {
      __builtin_prefetch(addr+CACHELINE_BYTES*c);
   }
}
 
#else
 
inline void prefetch(const char*,int);
 
#endif