recorder-viz

This is a python package which contains tools for processing Recorder traces.

Installation and Visualization

recorder-viz relies on Recorder and a few python libraries to run. Please see the document here.

Below are some example graphs generated from the FLASH traces.

Advanced Usages

The RecorderReader class contains all infomration about the Recorder traces.

class RecorderReader:
    self.GM: instance of GlobalMetadata
    self.LMs: list of LocalMetadata objects, one for each rank
    self.records: self.records[i] is a list of Record objects of rank i.

GlobalMetadta, LocalMetadata and Record are three Python wrappers of C structures.

class LocalMetadata(Structure):
    self.total_records: int
    self.num_files: int
    self.filemap: set()
    self.function_count: []


class RecorderMetadata(Structure):
    _fields_ = [
            ("total_ranks", c_int),
            ("start_ts", c_double),
            ("time_resolution", c_double),
            ("ts_buffer_elements", c_int),
            ("ts_compression_algo", c_int),
    ]

class Record(Structure):
    _fields_ = [
            ("tstart", c_double),
            ("tend", c_double),
            ("level", c_ubyte),
            ("func_id", c_ubyte),
            ("tid", c_int),
            ("arg_count", c_ubyte),
            ("args", POINTER(c_char_p)),
    ]

Here's an example on how to use the provided classes.

from recorder_viz import RecorderReader

reader = RecorderReader("path/to/Recorder-traces-folder")

for rank in range(reader.GM.total_ranks):
    LM = reader.LMs[rank]
    print("Rank: %d, Number of trace records: %d" %(rank, LM.total_records))