0, 下载并编译 rocBLAS 的调试版本
sudo apt install python3.10-venv
sudo apt install libmsgpack-dev
sudo pip install joblib
git clone --recursive https://github.com/ROCm/rocBLAS.git
$ cd rocBLAS/
$ ./install.sh -i -g
构建时间也不短
1，下载并编译 rocSolver 的调试版本
cpp
git clone --recursive git@github.com:ROCm/rocSOLVER.git
cd rocSOLVER/
~/ex_rocm/rocSOLVER$ ./install.sh -i -g --install_dir ../local/ --rocblas_dir /opt/rocm/lib这个编译时间真的长，3个小时的样子，主要是99%后花了两个小时多，跟计算机性能关系不大。
2，编译app源代码
ex_rocsolver_dgeqrf.cpp
cpp
/
// example.cpp source code //
/
#include <algorithm> // for std::min
#include <stddef.h> // for size_t
#include <stdio.h>
#include <vector>
#include <hip/hip_runtime_api.h> // for hip functions
#include <rocsolver/rocsolver.h> // for all the rocsolver C interfaces and type declarations
void init_vector(double* A, int n)
{
for(int i=0; i<n; i++)
A[i] = (rand()%2000)/1000.0;
}
void print_matrix(double* A, int M, int N, int lda)
{
for(int i=0; i<M; i++)
{
for(int j=0; j<N; j++)
{
printf("%7.4f, ", A[i + j*lda]);
}
printf("\n");
}
}
int main() {
rocblas_int M = 7;
rocblas_int N = 7;
rocblas_int lda = M;
// here is where you would initialize M, N and lda with desired values
rocblas_handle handle;
rocblas_create_handle(&handle);
size_t size_A = size_t(lda) * N; // the size of the array for the matrix
size_t size_piv = size_t(std::min(M, N)); // the size of array for the Householder scalars
std::vector<double> hA(size_A); // creates array for matrix in CPU
std::vector<double> hIpiv(size_piv); // creates array for householder scalars in CPU
init_vector(hA.data(), size_A);
memset(hIpiv.data(), 0, size_piv*sizeof(double));
print_matrix(hA.data(), M, N, lda);
double *dA, *dIpiv;
hipMalloc(&dA, sizeof(double)*size_A); // allocates memory for matrix in GPU
hipMalloc(&dIpiv, sizeof(double)*size_piv); // allocates memory for scalars in GPU
// here is where you would initialize matrix A (array hA) with input data
// note: matrices must be stored in column major format,
// i.e. entry (i,j) should be accessed by hA[i + j*lda]
// copy data to GPU
hipMemcpy(dA, hA.data(), sizeof(double)*size_A, hipMemcpyHostToDevice);
// compute the QR factorization on the GPU
rocsolver_dgeqrf(handle, M, N, dA, lda, dIpiv);
// copy the results back to CPU
hipMemcpy(hA.data(), dA, sizeof(double)*size_A, hipMemcpyDeviceToHost);
hipMemcpy(hIpiv.data(), dIpiv, sizeof(double)*size_piv, hipMemcpyDeviceToHost);
printf("\nR =\n");
print_matrix(hA.data(), M, N, lda);
printf("\ntau=\n");
print_matrix(hIpiv.data(), 1, N, 1);
// the results are now in hA and hIpiv, so you can use them here
hipFree(dA); // de-allocate GPU memory
hipFree(dIpiv);
rocblas_destroy_handle(handle); // destroy handle
}Makefile
cpp
EXE := ex_rocsolver_dgeqrf
all: $(EXE)
INC := -I /home/hipper/ex_rocm/rocSOLVER/build/debug/rocsolver-install/include/rocsolver -D__HIP_PLATFORM_AMD__
LD_FLAGS := -L /home/hipper/ex_rocm/rocSOLVER/build/debug/rocsolver-install/lib -lamdhip64 -lrocblas -lrocsolver
ex_rocsolver_dgeqrf.o: ex_rocsolver_dgeqrf.cpp
g++ -g $< $(INC) -c -o $@
ex_rocsolver_dgeqrf: ex_rocsolver_dgeqrf.o
g++ -g $< $(LD_FLAGS) -o $@
.PHONY: clean
clean:
${RM} *.o $(EXE)3，运行调试
export LD_LIBRARY_PATH=/home/hipper/ex_rocm/rocSOLVER/build/debug/rocsolver-install/lib
$ gdb ./ex_rocsolver_dgeqrf
37 ROCSOLVER_LAUNCH_KERNEL(set_diag<T>, dim3(batch_count, 1, 1), dim3(1, 1, 1), 0, stream,
(gdb)
137 ROCSOLVER_LAUNCH_KERNEL(set_diag<T>, dim3(batch_count, 1, 1), dim3(1, 1, 1), 0, stream,
(gdb)
145 if(j < n - 1)
(gdb)
147 rocsolver_larf_template(handle, rocblas_side_left, m - j, n - j - 1, A,
(gdb)
154 ROCSOLVER_LAUNCH_KERNEL(restore_diag<T>, dim3(batch_count, 1, 1), dim3(1, 1, 1), 0, stream,
(gdb)
154 ROCSOLVER_LAUNCH_KERNEL(restore_diag<T>, dim3(batch_count, 1, 1), dim3(1, 1, 1), 0, stream,
(gdb)
129 for(rocblas_int j = 0; j < dim; ++j)
(gdb)
132 rocsolver_larfg_template(handle, m - j, A, shiftA + idx2D(j, j, lda), A,
(gdb)
137 ROCSOLVER_LAUNCH_KERNEL(set_diag<T>, dim3(batch_count, 1, 1), dim3(1, 1, 1), 0, stream,
(gdb)
137 ROCSOLVER_LAUNCH_KERNEL(set_diag<T>, dim3(batch_count, 1, 1), dim3(1, 1, 1), 0, stream,
(gdb)
145 if(j < n - 1)
(gdb)
154 ROCSOLVER_LAUNCH_KERNEL(restore_diag<T>, dim3(batch_count, 1, 1), dim3(1, 1, 1), 0, stream,
(gdb)
154 ROCSOLVER_LAUNCH_KERNEL(restore_diag<T>, dim3(batch_count, 1, 1), dim3(1, 1, 1), 0, stream,
(gdb)
129 for(rocblas_int j = 0; j < dim; ++j)
(gdb)
163 }
(gdb)
rocsolver_geqrf_template<false, false, double, double*> (handle=0x55555565ecd0, m=<optimized out>, n=<optimized out>, A=0x7fff09000000, shiftA=0, lda=7, strideA=<optimized out>, ipiv=<optimized out>, strideP=<optimized out>, batch_count=<optimized out>, scalars=<optimized out>, work_workArr=<optimized out>, Abyx_norms_trfact=<optimized out>, diag_tmptr=<optimized out>, workArr=<optimized out>) at /home/hipper/ex_rocm/rocSOLVER/library/src/lapack/roclapack_geqrf.hpp:174
174 }
(gdb)