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Simple SIMD examples for training purposes

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VectorCamp/simd-examples

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Simple SIMD examples for training purposes

TODO

Add makefile

Examples

average_sse.c

Calculates the average ofN values in scalar and using SSE on x86

$ gcc -O3 average_sse.c -o average_sse
$ ./average_sseupdated diff1 tv_sec:2 tv_usec:151147updated diff2 tv_sec:1 tv_usec:337442average of 1073741824 elements = 16777216.000000 (scalar), 16777216.000000 (SSE)scalar: 2 sec, usec: 151147SSE: 1 sec, usec: 337442

average_avx2.c

Calculates the average ofN values in scalar and using AVX2 on x86

$ gcc -mavx2 -O3 average_avx2.c -o average_avx2
$ ./average_avx2 updated diff1 tv_sec:2 tv_usec:549127average of 1073741824 elements = 16777216.000000 (scalar), 16777216.000000 (AVX2)scalar: 2 sec, usec: 549127avx2   : 1 sec, usec: 337110

average_avx512.c

Calculates the average ofN values in scalar and using AVX512 on x86

$ gcc -mavx512f -O3 average_avx512.c -o average_avx512
$ ./average_avx512updated diff1 tv_sec:2 tv_usec:550474average of 1073741824 elements = 16777216.000000 (scalar), 16777216.000000 (AVX512)scalar: 2 sec, usec: 550474avx512   : 1 sec, usec: 336621

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