'profiler' Submodule
Introduction¶
from streamtensor import profiler
Vitis HLS profiling tool for StreamTensor tasks.
This module provides a high-level interface to the Vitis HLS profiler for
StreamTensor tasks. It exposes a single class Profiler that takes a
serialized MLIR module and a set of options, and returns the performance data
for the tasks in the module.
Profiler(synthesizer)
¶
Vitis HLS profiler for StreamTensor tasks.
Attributes:
| Name | Type | Description |
|---|---|---|
synthesizer |
Synthesizer
|
The synthesizer instance. |
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
synthesizer
|
Synthesizer
|
The synthesizer instance. |
required |
get_module_performance_map(modules)
staticmethod
¶
Parses the module performance data from the given XML data.
The returned dictionary is a mapping from the module name to a dictionary of performance data.
The performance data dictionary contains the following keys
- module_latency: The module latency.
- module_interval: The module initiation interval.
- loop_name: The loop name.
- loop_trip_count: The loop trip count.
- loop_latency: The loop latency.
- loop_type: The loop pipeline type.
- loop_ii: The loop initiation interval.
- loop_depth: The loop initiation depth.
- loop_instance: The loop instance name.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
modules
|
List[Element]
|
The list of module elements from the XML data. |
required |
Returns:
| Type | Description |
|---|---|
Dict[str, Dict[str, str | int]]
|
A dictionary of module performance data. |
Raises:
| Type | Description |
|---|---|
AssertionError
|
If the XML data is invalid. |
get_task_performance_map(modules, tasks)
staticmethod
¶
Gets the performance data for the given tasks.
This method adds the following keys to the performance data dictionary
- task_module_name: The module name of the task.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
modules
|
List[Element]
|
The list of module elements from the XML data. |
required |
tasks
|
List[TaskOp]
|
The list of tasks to profile. |
required |
Returns:
| Type | Description |
|---|---|
Dict[TaskOp, Dict[str, str | int]]
|
A dictionary of task performance data. |
Raises:
| Type | Description |
|---|---|
AssertionError
|
If the XML data is invalid. |
profile_tasks(module)
¶
Profiles the tasks in the given module.
This method triggers the HLS synthesis for each task concurrently and collects the performance data from the generated Vitis HLS reports. This method may task a long time to execute depending on the number of tasks in the module.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
module
|
Module
|
The module to profile. |
required |
Returns:
| Type | Description |
|---|---|
Dict[TaskOp, Dict[str, str | int]]
|
A dictionary of task performance data. |
apply_task_profiling(module, work_path='.', config=SynthesisConfig())
¶
Applies task profiling to the given module.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
module
|
Module
|
The module to profile. |
required |
work_path
|
str
|
The working directory path. |
'.'
|
config
|
SynthesisConfig
|
The synthesis configuration. |
SynthesisConfig()
|
Returns:
| Type | Description |
|---|---|
None
|
None. The profiling results are annotated as attributes in the tasks. |