my-example-3a.cpp

/*
please note that the series of optmiztion technology is not in official document.  

All the tests are based on AMD MI25 radeon instict and AMD ROCm. 
*/


#include <assert.h>
#include <stdio.h>
#include <algorithm>
#include <stdlib.h>
#include <iostream>
#include <hip/hip_runtime.h>



#define HIP_ASSERT(x) (assert((x)==hipSuccess))

#define NUM  1 


#define THREADS_PER_BLOCK_X  256
#define THREADS_PER_BLOCK_Y  1
#define THREADS_PER_BLOCK_Z  1
#define MAX_VGPRS   255


__global__ void ljx_test_kernel_255()
{
    asm volatile("v_mov_b32 v0, 0");
    asm volatile("v_mov_b32 v255, 0" );
}


__global__ void ljx_test_kernel_256()
{
  asm volatile("v_mov_b32 v0, 0");
	asm volatile("v_mov_b32 v256, 0");
}



using namespace std;

int main() {
  
  float* hostA;

  float* deviceA;

  // hipDeviceProp_t devProp;
  // hipGetDeviceProperties(&devProp, 0);
  // cout << " System minor " << devProp.minor << endl;
  // cout << " System major " << devProp.major << endl;
  // cout << " agent prop name " << devProp.name << endl;

  // cout << "hip Device prop succeeded " << endl ;

  // hipEvent_t start, stop;

  // hipEventCreate(&start);
  // hipEventCreate(&stop);
  // float eventMs = 1.0f;

  // int i;
  int errors;

  //hostA = (float*)malloc(NUM * sizeof(float));
  

  
  //HIP_ASSERT(hipMalloc((void**)&deviceA, NUM * sizeof(float)));
  


  int vgprs;
  vgprs = 255;
  printf(" Begin lauch %d VGPRs passed \n", vgprs);
  
  // my method
    dim3 blocksize(THREADS_PER_BLOCK_X, THREADS_PER_BLOCK_Y);
    dim3 gridsize(1, 1);
    // ljx_test_kernel_255<<<gridsize, blocksize >>> ();
    
    ljx_test_kernel_256<<<gridsize, blocksize >>> ();
    printf("%d VGPRs passed \n", vgprs);
    
  
  
  return errors;
}