From 75db98db253adf7fbde293f102ab095b02402f9e Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Fri, 10 Jul 2015 23:38:30 +0000
Subject: [PATCH] normalization layer
---
src/blas_kernels.cu | 36 ++++++++++++++++++++++++++++++++++++
1 files changed, 36 insertions(+), 0 deletions(-)
diff --git a/src/blas_kernels.cu b/src/blas_kernels.cu
index 636a9b5..2155801 100644
--- a/src/blas_kernels.cu
+++ b/src/blas_kernels.cu
@@ -9,6 +9,18 @@
if(i < N) Y[OFFY+i*INCY] += ALPHA*X[OFFX+i*INCX];
}
+__global__ void pow_kernel(int N, float ALPHA, float *X, int INCX, float *Y, int INCY)
+{
+ int i = (blockIdx.x + blockIdx.y*gridDim.x) * blockDim.x + threadIdx.x;
+ if(i < N) Y[i*INCY] = pow(X[i*INCX], ALPHA);
+}
+
+__global__ void const_kernel(int N, float ALPHA, float *X, int INCX)
+{
+ int i = (blockIdx.x + blockIdx.y*gridDim.x) * blockDim.x + threadIdx.x;
+ if(i < N) X[i*INCX] = ALPHA;
+}
+
__global__ void scal_kernel(int N, float ALPHA, float *X, int INCX)
{
int i = (blockIdx.x + blockIdx.y*gridDim.x) * blockDim.x + threadIdx.x;
@@ -27,11 +39,23 @@
if(i < N) Y[i*INCY + OFFY] = X[i*INCX + OFFX];
}
+__global__ void mul_kernel(int N, float *X, int INCX, float *Y, int INCY)
+{
+ int i = (blockIdx.x + blockIdx.y*gridDim.x) * blockDim.x + threadIdx.x;
+ if(i < N) Y[i*INCY] *= X[i*INCX];
+}
+
extern "C" void axpy_ongpu(int N, float ALPHA, float * X, int INCX, float * Y, int INCY)
{
axpy_ongpu_offset(N, ALPHA, X, 0, INCX, Y, 0, INCY);
}
+extern "C" void pow_ongpu(int N, float ALPHA, float * X, int INCX, float * Y, int INCY)
+{
+ pow_kernel<<<cuda_gridsize(N), BLOCK>>>(N, ALPHA, X, INCX, Y, INCY);
+ check_error(cudaPeekAtLastError());
+}
+
extern "C" void axpy_ongpu_offset(int N, float ALPHA, float * X, int OFFX, int INCX, float * Y, int OFFY, int INCY)
{
axpy_kernel<<<cuda_gridsize(N), BLOCK>>>(N, ALPHA, X, OFFX, INCX, Y, OFFY, INCY);
@@ -43,6 +67,12 @@
copy_ongpu_offset(N, X, 0, INCX, Y, 0, INCY);
}
+extern "C" void mul_ongpu(int N, float * X, int INCX, float * Y, int INCY)
+{
+ mul_kernel<<<cuda_gridsize(N), BLOCK>>>(N, X, INCX, Y, INCY);
+ check_error(cudaPeekAtLastError());
+}
+
extern "C" void copy_ongpu_offset(int N, float * X, int OFFX, int INCX, float * Y, int OFFY, int INCY)
{
copy_kernel<<<cuda_gridsize(N), BLOCK>>>(N, X, OFFX, INCX, Y, OFFY, INCY);
@@ -55,6 +85,12 @@
check_error(cudaPeekAtLastError());
}
+extern "C" void const_ongpu(int N, float ALPHA, float * X, int INCX)
+{
+ const_kernel<<<cuda_gridsize(N), BLOCK>>>(N, ALPHA, X, INCX);
+ check_error(cudaPeekAtLastError());
+}
+
extern "C" void scal_ongpu(int N, float ALPHA, float * X, int INCX)
{
scal_kernel<<<cuda_gridsize(N), BLOCK>>>(N, ALPHA, X, INCX);
--
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