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Oct 23, 2025
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gpu_thrust.cuh: removed thrust::[unary|binary]_function #694

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37 changes: 18 additions & 19 deletions quest/src/gpu/gpu_thrust.cuh
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Original file line number Diff line number Diff line change
Expand Up @@ -175,44 +175,44 @@ auto getEndPtr(FullStateDiagMatr matr) {
*/


struct functor_getAmpConj : public thrust::unary_function<cu_qcomp,cu_qcomp> {
struct functor_getAmpConj {

__host__ __device__ cu_qcomp operator()(cu_qcomp amp) {
return getCompConj(amp);
}
};

struct functor_getAmpNorm : public thrust::unary_function<cu_qcomp,qreal> {
struct functor_getAmpNorm {

__host__ __device__ qreal operator()(cu_qcomp amp) {
return getCompNorm(amp);
}
};

struct functor_getAmpReal : public thrust::unary_function<cu_qcomp,qreal> {
struct functor_getAmpReal {

__host__ __device__ qreal operator()(cu_qcomp amp) {
return getCompReal(amp);
}
};


struct functor_getAmpConjProd : public thrust::binary_function<cu_qcomp,cu_qcomp,cu_qcomp> {
struct functor_getAmpConjProd {

__host__ __device__ cu_qcomp operator()(cu_qcomp braAmp, cu_qcomp ketAmp) {
return getCompConj(braAmp) * ketAmp;
}
};

struct functor_getNormOfAmpDif : public thrust::binary_function<cu_qcomp,cu_qcomp,qreal> {
struct functor_getNormOfAmpDif {

__host__ __device__ qreal operator()(cu_qcomp amp1, cu_qcomp amp2) {
return getCompNorm(amp1 - amp2);
}
};


struct functor_getExpecStateVecZTerm : public thrust::binary_function<qindex,cu_qcomp,qreal> {
struct functor_getExpecStateVecZTerm {

// this functor computes a single term from the sum
// in the expectation value of Z of a statevector
Expand All @@ -229,7 +229,7 @@ struct functor_getExpecStateVecZTerm : public thrust::binary_function<qindex,cu_
};


struct functor_getExpecDensMatrZTerm : public thrust::unary_function<qindex,cu_qcomp> {
struct functor_getExpecDensMatrZTerm {

// this functor computes a single term from the sum
// in the expectation value of Z of a density matrix
Expand All @@ -252,7 +252,7 @@ struct functor_getExpecDensMatrZTerm : public thrust::unary_function<qindex,cu_q
};


struct functor_getExpecStateVecPauliTerm : public thrust::unary_function<qindex,cu_qcomp> {
struct functor_getExpecStateVecPauliTerm {

// this functor computes a single term from the sum in the
// expectation value of a Pauli str (which necessarily contains
Expand All @@ -276,7 +276,7 @@ struct functor_getExpecStateVecPauliTerm : public thrust::unary_function<qindex,
};


struct functor_getExpecDensMatrPauliTerm : public thrust::unary_function<qindex,cu_qcomp> {
struct functor_getExpecDensMatrPauliTerm {

// this functor computes a single term from the sum in the
// expectation value of a Pauli str (which necessarily contains
Expand Down Expand Up @@ -304,7 +304,7 @@ struct functor_getExpecDensMatrPauliTerm : public thrust::unary_function<qindex,


template <bool HasPower, bool UseRealPow>
struct functor_getExpecDensMatrDiagMatrTerm : public thrust::unary_function<qindex,cu_qcomp> {
struct functor_getExpecDensMatrDiagMatrTerm {

// this functor computes a single term from the sum in the expectation
// value of a FullStateDiagMatr upon a density matrix
Expand Down Expand Up @@ -372,7 +372,7 @@ struct functor_setAmpToPauliStrSumElem {
};


struct functor_mixAmps : public thrust::binary_function<cu_qcomp,cu_qcomp,cu_qcomp> {
struct functor_mixAmps {

// this functor linearly combines the given pair
// of amplitudes, weighted by the fixed qreals,
Expand All @@ -389,7 +389,7 @@ struct functor_mixAmps : public thrust::binary_function<cu_qcomp,cu_qcomp,cu_qco


template <bool HasPower, bool UseRealPow, bool Norm>
struct functor_multiplyElemPowerWithAmpOrNorm : public thrust::binary_function<cu_qcomp,cu_qcomp,cu_qcomp> {
struct functor_multiplyElemPowerWithAmpOrNorm {

// this functor multiplies a diagonal matrix element
// raised to a power (templated to optimise away the
Expand All @@ -415,7 +415,7 @@ struct functor_multiplyElemPowerWithAmpOrNorm : public thrust::binary_function<c
};


struct functor_getDiagInd : public thrust::unary_function<qindex,qindex> {
struct functor_getDiagInd {

// this functor accepts the index of a statevector
// basis-state and produces the index of a density
Expand All @@ -435,7 +435,7 @@ struct functor_getDiagInd : public thrust::unary_function<qindex,qindex> {


template <int NumBits>
struct functor_insertBits : public thrust::unary_function<qindex,qindex> {
struct functor_insertBits {

// this functor inserts bits into a qindex value, and
// is used to enumerate specific basis-state indices
Expand Down Expand Up @@ -463,8 +463,7 @@ struct functor_insertBits : public thrust::unary_function<qindex,qindex> {


template <bool Conj>
struct functor_getFidelityTerm : public thrust::unary_function<qindex,cu_qcomp>
{
struct functor_getFidelityTerm {
int rank, numQubits;
qindex logNumAmpsPerNode, numAmpsPerCol;
cu_qcomp *rho, *psi;
Expand Down Expand Up @@ -503,7 +502,7 @@ struct functor_getFidelityTerm : public thrust::unary_function<qindex,cu_qcomp>


template <int NumTargets>
struct functor_projectStateVec : public thrust::binary_function<qindex,cu_qcomp,cu_qcomp> {
struct functor_projectStateVec {

// this functor multiplies an amp with zero or a
// renormalisation codfficient, depending on whether
Expand Down Expand Up @@ -540,7 +539,7 @@ struct functor_projectStateVec : public thrust::binary_function<qindex,cu_qcomp,


template <int NumTargets>
struct functor_projectDensMatr : public thrust::binary_function<qindex,cu_qcomp,cu_qcomp> {
struct functor_projectDensMatr {

// this functor multiplies an amp with zero or a
// renormalisation coefficient, depending on whether
Expand Down Expand Up @@ -585,7 +584,7 @@ struct functor_projectDensMatr : public thrust::binary_function<qindex,cu_qcomp,
};


struct functor_setRandomStateVecAmp : public thrust::unary_function<qindex,cu_qcomp> {
struct functor_setRandomStateVecAmp {

// this functor generates a random, unnormalised
// statevector amplitude which, after normalisation
Expand Down