samskalicky commented on a change in pull request #17569: [WIP] Support sparse
custom operator
URL: https://github.com/apache/incubator-mxnet/pull/17569#discussion_r378069254
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File path: include/mxnet/lib_api.h
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@@ -229,20 +241,54 @@ enum MXReturnValue {
MX_SUCCESS = 1,
};
+struct ChunkDense {
+ // Pointer to data.
+ void *data{nullptr};
+ // Size of data in bytes.
+ size_t dataSize{0};
+ // shape of data.
+ std::vector<int64_t> shape;
+ // Context of data.
+ // MXContext ctx;
+};
+
+struct ChunkSparse {
+ // Pointer to data.
+ void *data{nullptr};
+ // Size of data in bytes.
+ size_t dataSize{0};
+ // length of data.
+ int64_t data_lens;
+
+ // To store aux data for sparse.
+ // for row_sparse, aux_data[0] = indices
+ // for csr, aux_data[0] = indptr, aux_data[1] = indices
+ std::vector<std::vector<int64_t>> aux_data;
+
+ // Lens of the aux_data.
+ // for row_sparse, aux_lens[0] = len(indices)
+ // for csr, aux_lens[0] = len(indptr), aux_lens[1] = len(indices)
+ std::vector<int64_t> aux_lens;
+ // Context of data.
+ // MXContext ctx;
+};
+
/*!
* \brief Tensor data structure used by custom operator
*/
struct MXTensor {
- MXTensor() : data_ptr(NULL), dtype(kUNSET), verID(0) {}
+ MXTensor() : data_ptr(nullptr), dtype(kUNSET), verID(0),
stype(kDefaultStorage) {}
+ // Construtor for dense.
MXTensor(void *data_ptr, const std::vector<int64_t> &shape, MXDType dtype,
- size_t vID, MXContext mx_ctx)
- : data_ptr(data_ptr), shape(shape), dtype(dtype), verID(vID), ctx(mx_ctx) {}
+ size_t vID, MXContext mx_ctx, MXStorageType stype = kDefaultStorage)
+ : data_ptr(data_ptr), shape(shape), dtype(dtype), verID(vID), ctx(mx_ctx),
stype(stype) {}
/*! \brief populate internal tensor fields */
+ // To do: solve for CSR and row sparse.
void setTensor(void *dptr, MXDType type, const int64_t* dims, int ndims,
- size_t vID, MXContext mx_ctx) {
- data_ptr = dptr; dtype = type; verID = vID; ctx = mx_ctx;
+ size_t vID, MXContext mx_ctx, MXStorageType stype =
kDefaultStorage) {
Review comment:
Same as above, lets make storage type an argument to the function and just
set it. No need for a default
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