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| author | Martijn Berger <martijn.berger@gmail.com> | 2013-11-22 17:16:47 +0400 |
|---|---|---|
| committer | Brecht Van Lommel <brechtvanlommel@gmail.com> | 2013-11-22 17:42:41 +0400 |
| commit | e3a79258d17e6cdca26120eab7a2c48c7c4d4a0f (patch) | |
| tree | 77d59694458125dd7525faf59ed56ce505533981 /intern/cycles/util/util_system.h | |
| parent | 5feb0d2bfe8f6723bf48073b1760b732bc6a5ceb (diff) | |
Cycles: test code for sse 4.1 kernel and alignment for some vector types.
This is mostly work towards enabling the __KERNEL_SSE__ option to start using
SIMD operations for vector math operations. This 4.1 kernel performes about 8%
faster with that option but overall is still slower than without the option.
WITH_CYCLES_OPTIMIZED_KERNEL_SSE41 is the cmake flag for testing this kernel.
Alignment of int3, int4, float3, float4 to 16 bytes seems to give a slight 1-2%
speedup on tested systems with the current kernel already, so is enabled now.
Diffstat (limited to 'intern/cycles/util/util_system.h')
| -rw-r--r-- | intern/cycles/util/util_system.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/intern/cycles/util/util_system.h b/intern/cycles/util/util_system.h index 333782c2d01..64cfa4906b3 100644 --- a/intern/cycles/util/util_system.h +++ b/intern/cycles/util/util_system.h @@ -26,6 +26,7 @@ string system_cpu_brand_string(); int system_cpu_bits(); bool system_cpu_support_sse2(); bool system_cpu_support_sse3(); +bool system_cpu_support_sse41(); CCL_NAMESPACE_END |