From d537de7deffa6036dab573ff174b7f8c8e470437 Mon Sep 17 00:00:00 2001 From: Henry Cook Date: Thu, 6 Nov 2014 17:24:39 -0800 Subject: Clean up canonical mt benchmarks and reorganize extra versions in /mt. All versions support support at least 1/2/4 threads. --- mt/vvadd3.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100755 mt/vvadd3.c (limited to 'mt/vvadd3.c') diff --git a/mt/vvadd3.c b/mt/vvadd3.c new file mode 100755 index 0000000..d18d2de --- /dev/null +++ b/mt/vvadd3.c @@ -0,0 +1,22 @@ +#include "stdlib.h" +#include "dataset.h" + +void __attribute__((noinline)) vvadd(int coreid, int ncores, size_t n, const data_t* x, const data_t* y, data_t* z) +{ + data_t* to = &z[coreid * (n / ncores)]; + const data_t* from1 = &x[coreid * (n / ncores)]; + const data_t* from2 = &y[coreid * (n / ncores)]; + size_t count = n / ncores; + size_t c = (count + 7) / 8; + switch(count % 8) { + case 0: do { *to++ = *from1++ + *from2++; + case 7: *to++ = *from1++ + *from2++; + case 6: *to++ = *from1++ + *from2++; + case 5: *to++ = *from1++ + *from2++; + case 4: *to++ = *from1++ + *from2++; + case 3: *to++ = *from1++ + *from2++; + case 2: *to++ = *from1++ + *from2++; + case 1: *to++ = *from1++ + *from2++; + } while(--c > 0); + } +} -- cgit v1.1