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round-up after testing of prefetches in stencil close

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This commit is contained in:
nmeyer-ur
2020-06-03 11:58:20 +02:00
parent 5050833b42
commit 5ee3ea2144
4 changed files with 41 additions and 10 deletions
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19
Grid/simd/Grid_a64fx-fixedsize.h
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@ -799,6 +799,25 @@ typedef veci SIMD_Itype; // Integer type
// prefetch utilities
inline void v_prefetch0(int size, const char *ptr){};
/* PF 256 worse than PF 64
inline void prefetch_HINT_T0(const char *ptr){
static int64_t last_ptr;
int64_t vptr = reinterpret_cast<std::intptr_t>(ptr) & 0x7fffffffffffff00ll;
if (last_ptr != vptr) {
last_ptr = vptr;
pred pg1 = Optimization::acle<double>::pg1();
svprfd(pg1, reinterpret_cast<int64_t*>(ptr), SV_PLDL1STRM);
svprfd(pg1, ptr, SV_PLDL1STRM);
}
};
*/
/* beneficial for operators?
inline void prefetch_HINT_T0(const char *ptr){
pred pg1 = Optimization::acle<double>::pg1();
svprfd(pg1, ptr, SV_PLDL1STRM);
};
*/
inline void prefetch_HINT_T0(const char *ptr){};
// Function name aliases