Utilities

HPPL Base

hl_base.h

Defines

HL_FLOAT_MAX

HPPL data type: real (float or double)

if real == float

HL_FLOAT_MAX: 3.40282347e+38F

HL_FLOAT_MIN: 1.17549435e-38F

HL_FLOAT_MIN

if real == double

HL_FLOAT_MAX: 1.7976931348623157e+308

HL_FLOAT_MIN: 2.2250738585072014e-308

DIVUP(x, y)

DIVUP(x, y) is similar to ceil(x / y).

Note
For CUDA, DIVUP will be used to specify the size of blockDim.

Typedefs

typedef struct _hl_matrix_s *hl_matrix_s
typedef struct _hl_sparse_matrix_s *hl_sparse_matrix_s

Enums

enum hl_stream_t

HPPL CUDA Stream.

HPPL is an internal high performance parallel computing library for high-level neural network routines, which can support many heterogeneous compute architectures, such as GPU, FPGA, etc.

Note
Each thread can use HPPL_STREAM_* after calling hl_init. HPPL_STREAM_DEFAULT is HPPL default stream.

Values:

HPPL_STREAM_DEFAULT = 0
HPPL_STREAM_1 = 1
HPPL_STREAM_2 = 2
HPPL_STREAM_3 = 3
HPPL_STREAM_4 = 4
HPPL_THREAD_STREAM_1 = 5
HPPL_THREAD_STREAM_2 = 6
HPPL_THREAD_STREAM_3 = 7
HPPL_THREAD_STREAM_4 = 8
HPPL_STREAM_END
enum hl_activation_mode_t

HPPL activation mode.

Values:

HL_ACTIVATION_SIGMOID = 0
HL_ACTIVATION_RELU = 1
HL_ACTIVATION_TANH = 2
HL_ACTIVATION_LINEAR = 3
HL_ACTIVATION_END
enum hl_trans_op_t

Transpose type.

Values:

HPPL_OP_N = 0
HPPL_OP_T = 1
HPPL_OP_END
enum hl_matrix_value_t

Sparse matrix value type.

Values:

HL_NO_VALUE = 0
HL_FLOAT_VALUE = 1
HL_VALUE_END
enum hl_matrix_format_t

HPPL matrix format.

Values:

HL_SPARSE_CSR = 0
HL_SPARSE_CSC = 1
HL_SPARSE_END
struct hl_lstm_value
#include <hl_base.h>

Lstm value.

Parameters
  • gateValue -

    input value.

  • prevStateValue -

    previous state value.

  • stateValue -

    state value.

  • stateActiveValue -

    state active value.

  • outputValue -

    output value.

Public Members

real *gateValue
real *prevStateValue
real *stateValue
real *stateActiveValue
real *outputValue
real *checkIg
real *checkFg
real *checkOg
struct hl_lstm_grad
#include <hl_base.h>

Lstm gradient.

Parameters
  • gateGrad -

    input gradient.

  • prevStateGrad -

    previous state gradient.

  • stateGrad -

    state gradient.

  • stateActiveGrad -

    state active gradient.

  • outputGrad -

    output gradient.

Public Members

real *gateGrad
real *prevStateGrad
real *stateGrad
real *stateActiveGrad
real *outputGrad
real *checkIgGrad
real *checkFgGrad
real *checkOgGrad
struct hl_gru_value
#include <hl_base.h>

Gru value.

Parameters
  • gateWeight -

    gate weight (updateGate + resetGate).

  • stateWeight -

    frame state weight.

  • gateValue -

    gate value results.

  • resetOutputValue -

    resetOutput value.

  • outputValue -

    output value.

  • prevOutValue -

    previous output value.

Public Members

real *gateWeight
real *stateWeight
real *gateValue
real *resetOutputValue
real *outputValue
real *prevOutValue
struct hl_gru_grad
#include <hl_base.h>

Gru gradient.

Parameters
  • gateWeightGrad -

    gate weight gradient.

  • stateWeightGrad -

    frame state weight gradient.

  • gateGrad -

    gate gradient results.

  • resetOutputGrad -

    resetOutput gradient.

  • outputGrad -

    output gradient.

  • prevOutGrad -

    previous output gradient.

Public Members

real *gateWeightGrad
real *stateWeightGrad
real *gateGrad
real *resetOutputGrad
real *outputGrad
real *prevOutGrad
struct _hl_sparse_matrix_s
#include <hl_base.h>

HPPL sparse matrix.

Parameters
  • matrix -

    sparse matrix.

  • format -

    matrix format.

  • type -

    the type of matrix values.

  • rows -

    matrix rows.

  • cols -

    matrix columns.

  • nnz -

    nonzero values of sparse matrix.

Public Members

hl_matrix_s matrix
hl_matrix_format_t format
hl_matrix_value_t type
int rows
int cols
size_t nnz

Timer

hl_time.h

Functions

int64_t getCurrentTimeStick(void)

High resolution timer.

Return
int64_t the representation value of the object as a count of periods, which are not necessarily seconds.
Note
It is used to generate random perturbation parameters.

Thread Resource

hl_thread.ph