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more update on MVN layer ocl implementation

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cut one ocl kernel if normVariance is disabled,
also use native_powr for performance reason.

Signed-off-by: Li Peng <peng.li@intel.com>
This commit is contained in:
Li Peng 2018-01-19 18:23:02 +08:00
parent 8226bd25c4
commit fe494297e4
2 changed files with 17 additions and 16 deletions
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9
modules/dnn/src/layers/mvn_layer.cpp
View File

@ -96,12 +96,15 @@ public:
return false;
int number = (s[1] % 8 == 0) ? 8 : ((s[1] % 4 == 0) ? 4 : 1);
size_t global[] = { (size_t)s[0], (size_t)(s[1] / number) };
String buildopt = format("-DNUM=%d ", number);
if (normVariance)
{
String kname = format("calc_mean%d", number);
ocl::Kernel kernel(kname.c_str(), ocl::dnn::mvn_oclsrc, buildopt);
if (kernel.empty())
return false;
size_t global[] = { (size_t)s[0], (size_t)(s[1] / number) };
kernel.set(0, ocl::KernelArg::PtrReadOnly(inpMat));
kernel.set(1, (int)s[0]);
kernel.set(2, (int)s[1]);
@ -111,15 +114,13 @@ public:
if (!ret)
return false;
if (normVariance)
{
ret = ocl4dnn::ocl4dnnGEMV<float>(ocl4dnn::CblasNoTrans, s[0], s[1], alpha,
tmpMat, 0, oneMat, 0, 0.0f, devMat, 0);
if (!ret)
return false;
}
kname = format("mvn%d", number);
String kname = format("mvn%d", number);
if (normVariance)
buildopt += "-DNORM_VARIANCE";
ocl::Kernel kernel1(kname.c_str(), ocl::dnn::mvn_oclsrc, buildopt);

2
modules/dnn/src/opencl/mvn.cl
View File

@ -79,7 +79,7 @@ __kernel void CALC_MEAN(__global const Dtype* src,
Dtype mean_val = mean[x];
vec_type src_vec = load(src, index);
vec_type dst_vec = pow(src_vec - (vec_type)mean_val, 2);
vec_type dst_vec = native_powr(src_vec - (vec_type)mean_val, 2);
store(dst_vec, dst, index);
}