CUDA遇到了段错误

[wang123sf]

gdb调试是在cudaMalloc的时候发生的，部分代码如下，程序运行到红色部分出现段错误，
size = 1048756

请教高手如何解决？谢谢！


void calculate_distance(float * selected_distance, int * selected_indice) {
float * training_data_d;
float * test_data_d;
float * selected_distance_d;
int * selected_indice_d;
unsigned int size;

size = N * SCALE * sizeof(float);

CUT_SAFE_CALL(cudaMalloc((void **)&training_data_d, size));
CUT_SAFE_CALL(cudaMalloc((void **)&test_data_d, SCALE * sizeof(float)));
CUT_SAFE_CALL(cudaMalloc((void **)&selected_distance_d, GRID_DIM * GRID_DIM * K * sizeof(float)));
CUT_SAFE_CALL(cudaMalloc((void **)&selected_indice_d, GRID_DIM * GRID_DIM * K * sizeof(int)));

[无心人_过过小日子]

256MB限制?
改用SDK 2.2.