使用cuda driverAPI函数执行向量添加代码时失败

使用cuda driverAPI函数执行向量添加代码时失败,cuda,Cuda,我在GPU设备上运行,驱动程序版本为5.0,使用cuda 5.0。当我完全使用驱动程序API函数执行vecAdd时,我面临着错误。我正在处理的代码发布在下面。有人能帮我解决这些错误吗 #include <stdio.h> #include <stdlib.h> #include "timer.h" #include "vecAdd-kernel.ptx.h" #include</opt/apps/cuda/5.0/include/cuda.h> #incl

我在GPU设备上运行,驱动程序版本为5.0,使用cuda 5.0。当我完全使用驱动程序API函数执行vecAdd时,我面临着错误。我正在处理的代码发布在下面。有人能帮我解决这些错误吗

#include <stdio.h>
#include <stdlib.h>

#include "timer.h"

#include "vecAdd-kernel.ptx.h"
#include</opt/apps/cuda/5.0/include/cuda.h>
#include</opt/apps/cuda/5.0/include/cuda_runtime_api.h>

void compute_vec_add(int N, float *a, float* b, float *c);

int main(int argc,char** argv) {

   static CUcontext ctx;
  CUdevice dev;


  CUdeviceptr d_a, d_b, d_c;
  float *h_a, *h_b, *h_c, *h_temp;
  int i;
  int N = 1024 * 1024*8;

  struct stopwatch_t* timer = NULL;
  long double t_pcie_htd, t_pcie_dth, t_kernel, t_cpu;

  /* Setup timers */
  stopwatch_init ();
  timer = stopwatch_create ();

  /*
    Create the vectors
  */
  h_a = (float *) malloc(sizeof(float) * N);
  h_b = (float *) malloc(sizeof(float) * N);
  h_c = (float *) malloc(sizeof(float) * N);

  /*
    Set the initial values of h_a, h_b, and h_c
  */
  for (i=0; i < N; i++) {
    h_a[i] = (float) (rand() % 100) / 10.0;
    h_b[i] = (float) (rand() % 100) / 10.0;
    h_c[i] = (float) 0.0;
  }

  stopwatch_start (timer);
  CUmodule mod;
  CUfunction vecAddFunc;

     cuInit(0);

     cuDeviceGet(&dev, 0);
     cuCtxCreate(&ctx, 0, dev);

   cuModuleLoadData(&mod, (char *) imageBytes);
   cuModuleGetFunction(&vecAddFunc, mod, "vecAdd");

  size_t offset = 0;

   cuMemAlloc(&d_a,sizeof(float) * N); 
   cuMemAlloc(&d_b,sizeof(float) * N); 
   cuMemAlloc(&d_c,sizeof(float) * N); 

   cuMemcpyHtoD(d_a,h_a,sizeof(float) * N);
   cuMemcpyHtoD(d_b,h_b,sizeof(float) * N);
   cuMemcpyHtoD(d_c,h_c,sizeof(float) * N);

  cuParamSetv(vecAddFunc, offset, &d_a, sizeof(d_a));
  offset += sizeof(d_a);

  cuParamSetv(vecAddFunc, offset, &d_b, sizeof(d_b));
  offset += sizeof(d_b);

  cuParamSetv(vecAddFunc, offset, &d_c, sizeof(d_c));
  offset += sizeof(d_c);

  cuParamSetSize(vecAddFunc, offset);

  cuFuncSetBlockShape (vecAddFunc, 256, 1, 1);

  cuLaunchGrid(vecAddFunc, N/256, 1);
  cuStreamSynchronize(0);

  cuMemcpyDtoH(h_c,d_c,sizeof(float) * N);

  t_kernel = stopwatch_stop (timer);
  fprintf (stderr, "Time to execute GPU kernel: %Lg secs\n",t_kernel);


  /*
    Double check errors
  */
  h_temp = (float *) malloc(sizeof(float) * N);
  stopwatch_start (timer);
  compute_vec_add (N, h_a, h_b, h_temp);
  t_cpu = stopwatch_stop (timer);
  fprintf (stderr, "Time to execute CPU program: %Lg secs\n",
           t_cpu);

  int cnt = 0;
  for(int i = 0; i < N; i++) {
    if(abs(h_temp[i] - h_c[i]) > 1e-5) cnt++;
  }
  fprintf(stderr, "number of errors: %d out of %d\n", cnt, N);

  /*
    Free the host memory
  */
  free(h_a);
  free(h_b);
  free(h_c);


   cuMemFree(d_a);
   cuMemFree(d_b);
   cuMemFree(d_c);
   cuCtxDestroy(ctx);

  /*
    Free timer
  */
  stopwatch_destroy (timer);

  if(cnt == 0) {
    printf("\n\nSuccess\n");
  }
}

void
compute_vec_add(int N, float *a, float* b, float *c) {
  int i;
  for (i=0;i<N;i++)
    c[i]=a[i]+b[i];
}
我使用的编译命令是

LDFLAGS = -I/usr/local/cuda/include \
          -L/usr/local/cuda/lib64 \


vecAdd-dummy: vecAdd-dummy.cu timer.o vecAdd-kernel.ptx.h
        nvcc -o vecAdd-dummy -arch=sm_20 vecAdd-dummy.cu timer.c ${LDFLAGS} -lcuda -g -G 

vecAdd-kernel.ptx : vecAdd-kernel.cu
        nvcc -arch=sm_20 -ptx $^ -o $@

vecAdd-kernel.ptx.h : vecAdd-kernel.ptx
        bin2c -t "char" $^ > $@

我使用的GPU设备是特斯拉M2090,检测到Cuda API错误:返回cuModuleLoadData(0xd1)

其余错误是加载模块失败的结果


CUDA 4.0中不推荐使用cuParamSet*和cuFuncSetBlockShaper函数。修复模块加载问题后,我建议您查看内核函数。

我了解问题在于cuModuleLoadData。在编译时,我使用-arch=sm_20(我在问题中更新的所有编译命令)进行编译。我仍然面临着这个问题。我是否缺少任何其他设备配置信息?如何解决错误CUDA_error_NO_BINARY_FOR_GPU=209?我怀疑您的错误与imageBytes有关。您是否尝试过将模块作为立方体加载或将PTX作为字符串传递(不使用bin2c)?我建议您将问题编辑为最小可重复性(删除所有无意义的内容),并指定您正在使用的bin2c或显示imageBytes的实际定义。
LDFLAGS = -I/usr/local/cuda/include \
          -L/usr/local/cuda/lib64 \


vecAdd-dummy: vecAdd-dummy.cu timer.o vecAdd-kernel.ptx.h
        nvcc -o vecAdd-dummy -arch=sm_20 vecAdd-dummy.cu timer.c ${LDFLAGS} -lcuda -g -G 

vecAdd-kernel.ptx : vecAdd-kernel.cu
        nvcc -arch=sm_20 -ptx $^ -o $@

vecAdd-kernel.ptx.h : vecAdd-kernel.ptx
        bin2c -t "char" $^ > $@
/**
 * This indicates that there is no kernel image available that is suitable
 * for the device. This can occur when a user specifies code generation
 * options for a particular CUDA source file that do not include the
 * corresponding device configuration.
 */
CUDA_ERROR_NO_BINARY_FOR_GPU              = 209,