Benchmarks: Add Benchmark - Add tcp connectivity validation microbenchmark (#217)

**Description**
Add tcp connectivity validation microbenchmark which is to validate TCP connectivity between current node and several nodes in the hostfile.

**Major Revision**
- Add tcp connectivity validation microbenchmark and related test, example

examples/benchmarks/tcp_connectivity.py

+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT license.
+
+"""Microbenchmark benchmark example for TCP connectivity.
+
+Commands to run:
+  python3 examples/benchmarks/tcp_connectivity.py
+"""
+
+from superbench.benchmarks import BenchmarkRegistry
+from superbench.common.utils import logger
+
+if __name__ == '__main__':
+    context = BenchmarkRegistry.create_benchmark_context(
+        'tcp-connectivity', parameters='--hostfile /tmp/superbench/hostfile.test --port 80 --parallel 1'
+    )
+
+    benchmark = BenchmarkRegistry.launch_benchmark(context)
+    if benchmark:
+        logger.info(
+            'benchmark: {}, return code: {}, result: {}'.format(
+                benchmark.name, benchmark.return_code, benchmark.result
+            )
+        )

setup.py

@@ -142,6 +142,7 @@ def run(self):
         'natsort>=7.1.1',
         'omegaconf==2.0.6',
         'pyyaml>=5.3',
+        'tcping>=0.1.1rc1',
         'xmltodict>=0.12.0',
     ],
     extras_require={

superbench/benchmarks/micro_benchmarks/__init__.py

@@ -19,10 +19,11 @@
 from superbench.benchmarks.micro_benchmarks.rocm_memory_bw_performance import RocmMemBwBenchmark
 from superbench.benchmarks.micro_benchmarks.rocm_gemm_flops_performance import RocmGemmFlopsBenchmark
 from superbench.benchmarks.micro_benchmarks.gpu_sm_copy_bw_performance import GpuSmCopyBwBenchmark
+from superbench.benchmarks.micro_benchmarks.tcp_connectivity import TCPConnectivityBenchmark
 
 __all__ = [
     'MicroBenchmark', 'MicroBenchmarkWithInvoke', 'ShardingMatmul', 'ComputationCommunicationOverlap', 'KernelLaunch',
     'CublasBenchmark', 'CudnnBenchmark', 'GemmFlopsBenchmark', 'CudaGemmFlopsBenchmark', 'MemBwBenchmark',
     'CudaMemBwBenchmark', 'DiskBenchmark', 'IBLoopbackBenchmark', 'CudaNcclBwBenchmark', 'RocmMemBwBenchmark',
-    'RocmGemmFlopsBenchmark', 'GpuSmCopyBwBenchmark'
+    'RocmGemmFlopsBenchmark', 'GpuSmCopyBwBenchmark', 'TCPConnectivityBenchmark'
 ]

superbench/benchmarks/micro_benchmarks/tcp_connectivity.py

+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT license.
+
+"""Module of the TCP connectivity benchmarks."""
+
+import tcping
+from joblib import Parallel, delayed
+
+from superbench.common.utils import logger
+from superbench.benchmarks import BenchmarkRegistry, ReturnCode
+from superbench.benchmarks.micro_benchmarks import MicroBenchmark
+
+
+def run_tcping(host, port, count, timeout):
+    """Run tcping for the given host address, port, count and timeout.
+
+    Args:
+        host (str): the address of the host
+        port (int): listened tcp port of the target node
+        count (int): try connections counts
+        timeout (int): timeout of each connection try in seconds
+
+    Returns:
+        str: Table-like output of the tcping. Error message if error or exception happened.
+    """
+    ping_obj = tcping.Ping(host, port, timeout)
+    output = None
+    try:
+        ping_obj.ping(count)
+        output = ping_obj.result.table
+    except Exception as e:
+        return 'Socket connection failure, address: {}, port: {}, message: {}.'.format(host, port, str(e))
+    return output
+
+
+class TCPConnectivityBenchmark(MicroBenchmark):
+    """The TCP connectivity performance benchmark class."""
+    def __init__(self, name, parameters=''):
+        """Constructor.
+
+        Args:
+            name (str): benchmark name.
+            parameters (str): benchmark parameters.
+        """
+        super().__init__(name, parameters)
+        self.__hosts = []
+
+    def add_parser_arguments(self):
+        """Add the specified arguments."""
+        super().add_parser_arguments()
+
+        self._parser.add_argument(
+            '--hostfile',
+            type=str,
+            default='/root/hostfile',
+            required=False,
+            help='The path of the hostfile including addresses to test',
+        )
+        self._parser.add_argument(
+            '--port',
+            type=int,
+            default=22,
+            required=False,
+            help='Listened tcp port of the target node',
+        )
+        self._parser.add_argument(
+            '--count',
+            type=int,
+            default=10,
+            required=False,
+            help='Try connections counts',
+        )
+        self._parser.add_argument(
+            '--timeout',
+            type=int,
+            default=1,
+            required=False,
+            help='Timeout of each connection try in seconds',
+        )
+        self._parser.add_argument(
+            '--parallel',
+            type=int,
+            default=-1,
+            required=False,
+            help='The maximum number of concurrently running jobs, if -1 all CPUs are used',
+        )
+
+    def _preprocess(self):
+        """Preprocess/preparation operations before the benchmarking.
+
+        Return:
+            True if _preprocess() succeed.
+        """
+        if not super()._preprocess():
+            return False
+
+        # Check if the content of hostfile is valid and not empty
+        valid = True
+        try:
+            with open(self._args.hostfile, 'r') as f:
+                self.__hosts = f.readlines()
+            for i in range(0, len(self.__hosts)):
+                self.__hosts[i] = self.__hosts[i].rstrip('\n')
+        except Exception:
+            valid = False
+        if not valid or len(self.__hosts) == 0:
+            self._result.set_return_code(ReturnCode.INVALID_ARGUMENT)
+            logger.error('Invalid hostfile - benchmark: {}, hostfile: {}.'.format(self._name, self._args.hostfile))
+            return False
+
+        return True
+
+    def _benchmark(self):
+        """Implementation for benchmarking.
+
+        Return:
+            True if run benchmark successfully.
+        """
+        logger.info('TCP validation - round: {0}, name: {1}'.format(self._curr_run_index, self._name))
+
+        # Run TCPing on host in the hostfile in parallel
+        try:
+            outputs = Parallel(n_jobs=min(len(self.__hosts), self._args.parallel))(
+                delayed(run_tcping)(self.__hosts[i], self._args.port, self._args.count, self._args.timeout)
+                for i in (range(len(self.__hosts)))
+            )
+        except Exception as e:
+            self._result.set_return_code(ReturnCode.MICROBENCHMARK_EXECUTION_FAILURE)
+            logger.error(
+                'Microbenchmark execution failed - round: {}, benchmark: {}, error message: {}.'.format(
+                    self._curr_run_index, self._name, str(e)
+                )
+            )
+            return False
+
+        # Parse the output and get the results
+        for host_index, out in enumerate(outputs):
+            if not self._process_raw_result(host_index, out):
+                self._result.set_return_code(ReturnCode.MICROBENCHMARK_RESULT_PARSING_FAILURE)
+                return False
+
+        return True
+
+    def _process_raw_result(self, idx, raw_output):
+        """Function to process raw results and save the summarized results.
+
+          self._result.add_raw_data() and self._result.add_result() need to be called to save the results.
+
+        Args:
+            idx (int): the index corresponding with the raw_output.
+            raw_output (str): raw output string of the micro-benchmark.
+
+        Return:
+            True if the raw output string is valid and result can be extracted.
+        """
+        host = self.__hosts[idx]
+        self._result.add_raw_data('raw_output_' + host, raw_output)
+
+        try:
+            # If socket error or exception happens on TCPing, add result values as failed
+            suc = 0
+            fail = self._args.count
+            mininum = 0.00
+            maximum = 0.00
+            average = 0.00
+            rate = 0
+            # Parse and add result from table-like output of TCPing
+            if 'failure' not in raw_output:
+                raw_output = raw_output.splitlines()
+                labels = None
+                for line in raw_output:
+                    # Get the line of the table labels
+                    if 'Host' in line:
+                        labels = line.split('|')
+                        labels = [label.strip() for label in labels]
+                    if host in line:
+                        res = line.split('|')
+                        res = [result.strip() for result in res]
+                        suc = int(res[labels.index('Successed')])
+                        fail = int(res[labels.index('Failed')])
+                        rate = float(res[labels.index('Success Rate')].strip('%'))
+                        mininum = float(res[labels.index('Minimum')].strip('ms'))
+                        maximum = float(res[labels.index('Maximum')].strip('ms'))
+                        average = float(res[labels.index('Average')].strip('ms'))
+            self._result.add_result('Successed_' + host, suc)
+            self._result.add_result('Failed_' + host, fail)
+            self._result.add_result('Success_Rate_' + host, rate)
+            self._result.add_result('Minimum_' + host, mininum)
+            self._result.add_result('Maximum_' + host, maximum)
+            self._result.add_result('Average_' + host, average)
+        except Exception as e:
+            logger.error(
+                'The result format is invalid - round: {}, benchmark: {}, address: {}, raw output: {}, message: {}.'.
+                format(self._curr_run_index, self._name, host, raw_output, str(e))
+            )
+            return False
+
+        return True
+
+
+BenchmarkRegistry.register_benchmark('tcp-connectivity', TCPConnectivityBenchmark)

tests/benchmarks/micro_benchmarks/test_tcp_connectivity.py

+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT License.
+
+"""Tests for tcp-connectivity benchmark."""
+
+import numbers
+import unittest
+from pathlib import Path
+
+from superbench.benchmarks import BenchmarkRegistry, BenchmarkType, ReturnCode
+from superbench.benchmarks.micro_benchmarks.tcp_connectivity import TCPConnectivityBenchmark
+
+
+class TCPConnectivityBenchmarkTest(unittest.TestCase):
+    """Tests for CudaGemmFlopsBenchmark benchmark."""
+    def setUp(self):
+        """Method called to prepare the test fixture."""
+        # Create hostfile just for testing.
+        testdir = Path('/tmp/superbench/')
+        testdir.mkdir(parents=True, exist_ok=True)
+        with open('/tmp/superbench/hostfile.test', 'w') as f:
+            f.write('api.github.com\n')
+            f.write('localhost\n')
+
+    def tearDown(self):
+        """Method called after the test method has been called and the result recorded."""
+        Path('/tmp/superbench/hostfile.test').unlink()
+
+    def test_tcp_connectivity(self):
+        """Test tcp-connectivity benchmark."""
+        context = BenchmarkRegistry.create_benchmark_context(
+            'tcp-connectivity',
+            parameters='--hostfile /tmp/superbench/hostfile.test --port 80 --parallel 2',
+        )
+        assert (BenchmarkRegistry.is_benchmark_context_valid(context))
+        benchmark = BenchmarkRegistry.launch_benchmark(context)
+
+        # Check basic information.
+        assert (benchmark)
+        assert (isinstance(benchmark, TCPConnectivityBenchmark))
+        assert (benchmark.name == 'tcp-connectivity')
+        assert (benchmark.type == BenchmarkType.MICRO)
+
+        # Check parameters specified in BenchmarkContext.
+        assert (benchmark._args.hostfile == '/tmp/superbench/hostfile.test')
+        assert (benchmark._args.port == 80)
+        assert (benchmark._args.count == 10)
+        assert (benchmark._args.timeout == 1)
+        assert (benchmark._args.parallel == 2)
+
+        print(benchmark.result)
+        assert (benchmark.result)
+
+        # Check results and metrics.
+        assert (benchmark.result['Successed_api.github.com'][0] == 10)
+        assert (benchmark.result['Failed_api.github.com'][0] == 0)
+        assert (benchmark.result['Success_Rate_api.github.com'][0] == 100.0)
+        assert (isinstance(benchmark.result['Minimum_api.github.com'][0], numbers.Number))
+        assert (isinstance(benchmark.result['Maximum_api.github.com'][0], numbers.Number))
+        assert (isinstance(benchmark.result['Average_api.github.com'][0], numbers.Number))
+        assert (isinstance(benchmark.result['Successed_localhost'][0], numbers.Number))
+        assert (isinstance(benchmark.result['Failed_localhost'][0], numbers.Number))
+        assert (isinstance(benchmark.result['Maximum_localhost'][0], numbers.Number))
+        assert (isinstance(benchmark.result['Minimum_localhost'][0], numbers.Number))
+        assert (isinstance(benchmark.result['Average_localhost'][0], numbers.Number))
+        assert (benchmark.return_code == ReturnCode.SUCCESS)