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Fix: fix undefined behavior in cusolver #5251

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merged 2 commits into from
Oct 16, 2024
Merged

Fix: fix undefined behavior in cusolver #5251

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6a378dd
fix undefined behavior
dzzz2001 Oct 16, 2024
bffe5eb
Merge branch 'develop' into cusolver-fix
dzzz2001 Oct 16, 2024
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34 changes: 17 additions & 17 deletions source/module_hsolver/kernels/cuda/diag_cusolver.cuh
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Original file line number Diff line number Diff line change
Expand Up @@ -21,28 +21,28 @@ class Diag_Cusolver_gvd{
// private variables
//-------------------

cusolverDnHandle_t cusolverH;
cusolverDnHandle_t cusolverH = nullptr;

cusolverEigType_t itype; //problem type: A*x = (lambda)*B*x
cusolverEigMode_t jobz; // compute eigenvalues and eigenvectors.
cublasFillMode_t uplo;
cusolverEigType_t itype = CUSOLVER_EIG_TYPE_1; //problem type: A*x = (lambda)*B*x
cusolverEigMode_t jobz = CUSOLVER_EIG_MODE_NOVECTOR; // compute eigenvalues and eigenvectors.
cublasFillMode_t uplo = CUBLAS_FILL_MODE_LOWER;

int m;
int lda;
int m = 0;
int lda = 0;

double *d_A;
double *d_B;
double *d_work;
double *d_A = nullptr;
double *d_B = nullptr;
double *d_work = nullptr;

cuDoubleComplex *d_A2;
cuDoubleComplex *d_B2;
cuDoubleComplex *d_work2;
cuDoubleComplex *d_A2 = nullptr;
cuDoubleComplex *d_B2 = nullptr;
cuDoubleComplex *d_work2 = nullptr;

double *d_W ;
int *devInfo;
double *d_W = nullptr;
int *devInfo = nullptr;

int lwork;
int info_gpu;
int lwork = 0;
int info_gpu = 0;

// subroutines that are related to initializing the class:
// - init_double : initializing relevant double type data structures and gpu apis' handle and memory
Expand All @@ -55,7 +55,7 @@ class Diag_Cusolver_gvd{
void finalize(); // for recycling the usage of the static class Diag_Cusolver_gvd
public:

int is_init; // For expensive gpu initialization only once when using cusolver for lcao
int is_init = 0; // For expensive gpu initialization only once when using cusolver for lcao

Diag_Cusolver_gvd();
~Diag_Cusolver_gvd();
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