Template Class Int8CacheCalibrator¶
Defined in File ptq.h
Inheritance Relationships¶
Base Type¶
private Algorithm
Class Documentation¶
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template<typename Algorithm>
class torch_tensorrt::ptq::Int8CacheCalibrator : private Algorithm¶ Generic Int8Calibrator implementation based on a specified TensorRT calibration algorithm that only reads from a calibration file.
- Template Parameters
Algorithm, : – class nvinfer1::IInt8Calibrator (Default: nvinfer1::IInt8EntropyCalibrator2) - Algorithm to use
Public Functions
-
inline Int8CacheCalibrator(const std::string &cache_file_path)¶
Construct a new Int 8 Cache Calibrator object.
- Parameters
cache_file_path –
- inline int getBatchSize () const noexceptoverride
Get the Batch Size for the next batch (always 1 due to issues with TRT and explicit batch)
- Returns
int
- inline bool getBatch (void *bindings[], const char *names[], int nbBindings) noexceptoverride
Get the next Batch.
Not used always returns false
- Parameters
bindings, : – void*[] - An array of binding pointers (fed in from TensorRT calibrator), these buffers should be filed with batch data for each input
names, : – const char*[] - Names of bindings
nbBindings, : – int - Number of bindings
- Returns
false
- inline const void * readCalibrationCache (size_t &length) noexceptoverride
Read calibration cache.
How to read from the calibration cache, only enabled if use_cache is set
- Parameters
length –
- Returns
const void* - Pointer to cache data
- inline void writeCalibrationCache (const void *cache, size_t length) noexceptoverride
Write calibration cache.
Write a the calibration cache provided by TensorRT to a specified file
- Parameters
cache, : – const void* - cache data
length, : – size_t - length of cache
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inline operator nvinfer1::IInt8Calibrator*()¶
operator to cast to nvinfer1::IInt8Calibrator*
Convience function to convert to a IInt8Calibrator* to easily be assigned to the ptq_calibrator field in CompileSpec
- Returns
nvinfer1::IInt8Calibrator*
