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kspaceFirstOrder3D-CUDA
1.1
The CUDA/C++ implementation of the k-wave toolbox for the time-domain simulation of acoustic wave fields in 3D
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Output stream for quantities sampled by an index sensor mask. More...
#include <IndexOutputHDF5Stream.h>
Public Member Functions | |
TIndexOutputHDF5Stream (THDF5_File &file, TMatrixName &datasetName, const TRealMatrix &sourceMatrix, const TIndexMatrix &sensorMask, const TReduceOperator reduceOp) | |
Constructor. More... | |
virtual | ~TIndexOutputHDF5Stream () |
Destructor. More... | |
virtual void | Create () |
Create a HDF5 stream and allocate data for it. More... | |
virtual void | Reopen () |
Reopen the output stream after restart and reload data. More... | |
virtual void | Sample () |
Sample data into buffer, apply reduction or copy to the CPU side. More... | |
virtual void | FlushRaw () |
Flush data to disk (from raw streams only). More... | |
virtual void | PostProcess () |
Apply post-processing on the buffer and flush it to the file. More... | |
virtual void | Checkpoint () |
Checkpoint the stream. More... | |
virtual void | Close () |
Close stream (apply post-processing if necessary, flush data and close). More... | |
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TBaseOutputHDF5Stream (THDF5_File &file, TMatrixName &rootObjectName, const TRealMatrix &sourceMatrix, const TReduceOperator reduceOp) | |
Constructor. More... | |
virtual | ~TBaseOutputHDF5Stream () |
Destructor. | |
Protected Member Functions | |
virtual void | FlushBufferToFile () |
Flush the buffer to the file. More... | |
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TBaseOutputHDF5Stream () | |
Default constructor not allowed. | |
TBaseOutputHDF5Stream (const TBaseOutputHDF5Stream &src) | |
Copy constructor not allowed. | |
TBaseOutputHDF5Stream & | operator= (const TBaseOutputHDF5Stream &src) |
Operator = not allowed (we don't want any data movements). | |
virtual void | AllocateMemory () |
A generic function to allocate memory - not used in the base class. More... | |
virtual void | FreeMemory () |
A generic function to free memory - not used in the base class. More... | |
virtual void | CopyDataToDevice () |
Copy data hostBuffer-> deviceBuffer. More... | |
virtual void | CopyDataFromDevice () |
Copy data deviceBuffer -> hostBuffer. More... | |
Protected Attributes | |
const TIndexMatrix & | sensorMask |
Sensor mask to sample data. | |
hid_t | dataset |
Handle to a HDF5 dataset. | |
size_t | sampledTimeStep |
Time step to store (N/A for aggregated) | |
cudaEvent_t | eventSamplingFinished |
Has the sampling finished? | |
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THDF5_File & | file |
HDF5 file handle. | |
std::string | rootObjectName |
Dataset name. | |
const TRealMatrix & | sourceMatrix |
Source matrix to be sampled. | |
hid_t | dataset |
HDF5 dataset handle. | |
const TReduceOperator | reduceOp |
Reduce operator. | |
TDimensionSizes | position |
Position in the dataset. | |
size_t | bufferSize |
Buffer size. | |
float * | hostBuffer |
Temporary buffer for store on the GPU side. | |
float * | deviceBuffer |
Temporary buffer on the GPU side - only for aggregated quantities. | |
Additional Inherited Members | |
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enum | TReduceOperator { NONE, RMS, MAX, MIN } |
How to aggregate data. More... | |
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static const size_t | CHUNK_SIZE_4MB = 1048576 |
chunk size of 4MB in number of float elements | |
static const size_t | MIN_GRIDPOINTS_TO_SAMPLE_IN_PARALLEL = 1048576 |
The minimum number of elements to start sampling in parallel (4MB) | |
Output stream for quantities sampled by an index sensor mask. This class writes data to a single dataset in a root group of the HDF5 file (time-series as well as aggregations).
Definition at line 47 of file IndexOutputHDF5Stream.h.
TIndexOutputHDF5Stream::TIndexOutputHDF5Stream | ( | THDF5_File & | file, |
TMatrixName & | datasetName, | ||
const TRealMatrix & | sourceMatrix, | ||
const TIndexMatrix & | sensorMask, | ||
const TReduceOperator | reduceOp | ||
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Constructor - links the HDF5 dataset, source (sampled matrix), sensor mask and the reduce operator together. The constructor DOES NOT allocate memory because the size of the sensor mask is not known at the time the instance of the class is being created.
[in] | file | - Handle to the HDF5 (output) file |
[in] | datasetName | - The dataset's name (index based sensor data stored in a single dataset) |
[in] | sourceMatrix | - The source matrix (only real matrices are supported) |
[in] | sensorMask | - Index based sensor mask |
[in] | reduceOp | - Reduce operator |
Definition at line 59 of file IndexOutputHDF5Stream.cpp.
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Destructor. If the file is still opened, it applies the post processing and flush the data. Then, the object memory is freed and the object destroyed.
Definition at line 80 of file IndexOutputHDF5Stream.cpp.
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Checkpoint the stream and close.
Implements TBaseOutputHDF5Stream.
Definition at line 282 of file IndexOutputHDF5Stream.cpp.
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Close stream (apply post-processing if necessary, flush data and close).
Implements TBaseOutputHDF5Stream.
Definition at line 298 of file IndexOutputHDF5Stream.cpp.
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Create a HDF5 stream, create a dataset, and allocate data for it.
Implements TBaseOutputHDF5Stream.
Definition at line 94 of file IndexOutputHDF5Stream.cpp.
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Flush the buffer down to the file at the actual position
Definition at line 318 of file IndexOutputHDF5Stream.cpp.
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Flush data for the timestep. Only applicable on RAW data series.
Implements TBaseOutputHDF5Stream.
Definition at line 243 of file IndexOutputHDF5Stream.cpp.
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Apply post-processing on the buffer and flush it to the file.
Reimplemented from TBaseOutputHDF5Stream.
Definition at line 260 of file IndexOutputHDF5Stream.cpp.
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Reopen the output stream after restart.
Implements TBaseOutputHDF5Stream.
Definition at line 140 of file IndexOutputHDF5Stream.cpp.
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Sample grid points, line them up in the buffer, if necessary a reduce operator is applied.
Implements TBaseOutputHDF5Stream.
Definition at line 187 of file IndexOutputHDF5Stream.cpp.