restructure libomnitrace + tasking and omnitrace-causal updates (#237)

* restructured libomnitrace

- this is necessary to incorporate some of the binary analysis capabilities into omnitrace exe
- created libomnitrace-core (static)
- created libomnitrace-binary (static)
- created libomnitrace (static)
- omnitrace-avail links to libomnitrace.a
- omnitrace-critical-trace links to libomnitrace.a
- tweaked the testing
  - reduced verbosity on some of MPI tests
  - excluded trace-time-window from tests on Ubuntu 18.04
  - reduced causal e2e iterations
- minor tweak to tasking
  - manually create `PTL::UserTaskQueue` instance instead of relying on `PTL::ThreadPool` to create it

* Update formatting workflow

- source formatting uses ubuntu-22.04
- check-includes doesn't generate false positive for 'include "timemory.hpp"'

* omnitrace-causal --generate-configs

- fix config generation in omnitrace causal
- add test for omnitrace-causal + generating configs

* Fix omnitrace-object-library build

- accidentally included rocm sources in non-rocm builds

* Fix rocm compilation w/o rocprofiler

* update timemory submodule with mpi_get warning messages

* sampling offload file updates

- more verbose messages
- disable offload before stopping

* testing updates

- increase causal e2e iterations to 12
- increase lock_environment verbose to 2 (for sampling offload messages)
- fix return for omnitrace_add_validation_test

source/lib/core/mproc.cpp

@@ -0,0 +1,74 @@
+// MIT License
+//
+// Copyright (c) 2022 Advanced Micro Devices, Inc. All Rights Reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#include "mproc.hpp"
+#include "common.hpp"
+#include "debug.hpp"
+
+#include <fstream>
+#include <set>
+#include <sstream>
+#include <string>
+#include <unistd.h>
+
+namespace omnitrace
+{
+namespace mproc
+{
+std::set<int>
+get_concurrent_processes(int _ppid)
+{
+    std::set<int> _children = {};
+    if(_ppid > 0)
+    {
+        auto          _inp = JOIN('/', "/proc", _ppid, "task", _ppid, "children");
+        std::ifstream _ifs{ _inp };
+        if(!_ifs)
+        {
+            OMNITRACE_VERBOSE_F(2, "Warning! File '%s' cannot be read\n", _inp.c_str());
+            return _children;
+        }
+
+        while(_ifs)
+        {
+            int _v = -1;
+            _ifs >> _v;
+            if(!_ifs.good() || _ifs.eof()) break;
+            if(_v < 0) continue;
+            _children.emplace(_v);
+        }
+    }
+    return _children;
+}
+
+int
+get_process_index(int _pid, int _ppid)
+{
+    auto _children = get_concurrent_processes(_ppid);
+    for(auto itr = _children.begin(); itr != _children.end(); ++itr)
+    {
+        if(*itr == _pid) return std::distance(_children.begin(), itr);
+    }
+    return -1;
+}
+}  // namespace mproc
+}  // namespace omnitrace