From a392bbd0c957a00e3782c96e7ced84a29ff9dd88 Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Tue, 15 Mar 2016 05:33:02 +0000
Subject: [PATCH] Play along w/ alphago
---
src/cuda.c | 15 ++++++++++++++-
1 files changed, 14 insertions(+), 1 deletions(-)
diff --git a/src/cuda.c b/src/cuda.c
index 7982953..d773d0b 100644
--- a/src/cuda.c
+++ b/src/cuda.c
@@ -7,10 +7,12 @@
#include "blas.h"
#include "assert.h"
#include <stdlib.h>
+#include <time.h>
void check_error(cudaError_t status)
{
+ cudaError_t status2 = cudaGetLastError();
if (status != cudaSuccess)
{
const char *s = cudaGetErrorString(status);
@@ -20,6 +22,15 @@
snprintf(buffer, 256, "CUDA Error: %s", s);
error(buffer);
}
+ if (status2 != cudaSuccess)
+ {
+ const char *s = cudaGetErrorString(status);
+ char buffer[256];
+ printf("CUDA Error Prev: %s\n", s);
+ assert(0);
+ snprintf(buffer, 256, "CUDA Error Prev: %s", s);
+ error(buffer);
+ }
}
dim3 cuda_gridsize(size_t n){
@@ -56,6 +67,7 @@
status = cudaMemcpy(x_gpu, x, size, cudaMemcpyHostToDevice);
check_error(status);
}
+ if(!x_gpu) error("Cuda malloc failed\n");
return x_gpu;
}
@@ -65,7 +77,8 @@
static int init = 0;
if(!init){
curandCreateGenerator(&gen, CURAND_RNG_PSEUDO_DEFAULT);
- curandSetPseudoRandomGeneratorSeed(gen, 0ULL);
+ curandSetPseudoRandomGeneratorSeed(gen, time(0));
+ init = 1;
}
curandGenerateUniform(gen, x_gpu, n);
check_error(cudaPeekAtLastError());
--
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