feat: parallel loop running based on asyncio (#932)

* refactor: split workflow into pkg, add WorkflowTracker & wait_retry

* feat: add async LoopBase with parallel workers and step semaphores

* fix: replace pickle with dill and run blocking tasks via joblib wrapper

* feat: add log format settings, dynamic parallelism & pickle-based snapshot

* fix: default step semaphore to 1 and avoid subprocess when single worker

* merge bowen's changes

* merge tim's changes

* refactor: extract component task mapping, add conditional logger setup

* lint

* refactor: add type hints and safer remain_time metric logging in workflow

* lint

* fix: allow BadRequestError to be pickled via custom copyreg reducer

* fix: stop loop when LoopTerminationError is raised in LoopBase

* lint

* refactor: make log tag context-local using ContextVar for thread safety

* feat: add subproc_step flag and helper to decide subprocess execution

* fix: use ./cache path and normalize relative volume bind paths

* fix: reset loop_idx to 0 on loop restart/resume to ensure correct flow

* fix: avoid chmod on cache and input dirs in Env timeout wrapper

* fix: skip chmod on 'cache' and 'input' dirs using find -prune

* fix: restrict chmod to immediate mount dirs excluding cache/input

* fix: chmod cache and input dirs alongside their contents after entry run

* fix: guard chmod with directory checks for cache and input

* fix: prefix mount_path in chmod command for cache/input dirs

* fix: drop quotes from find exclude patterns to ensure chmod executes

* fix: skip chmod on cache/input directories to avoid warning spam

* feat: support string volume mappings and poll subprocess stdout/stderr

* support remove symbolic link

* test: use dynamic home path and code volume in LocalEnv local_simple

* fix: skip trace and progress update when loop step is withdrawn

* refactor: add clean_workspace util and non-destructive workspace backup

* fix: preserve symlinks when backing up workspace with copytree

* fix: prevent AttributeError when _pbar not yet initialized in LoopBase

* perf: replace shutil.copytree with rsync for faster workspace backup

* fix: cast log directory Path to str in tar command of data science loop

* fix: use portable 'cp -r -P' instead of rsync for workspace backup

* fix: add retry and logging to workspace backup for robustness

* refactor: extract backup_folder helper and reuse in DataScienceRDLoop

* fix: propagate backup errors & default _pbar getattr to avoid error

* fix the division by zero bug

* refactor: execute RD loops via asyncio.run and add necessary imports

* lint

* lint

* lint

---------

Co-authored-by: Xu <v-xuminrui@microsoft.com>

test/utils/test_env.py

@@ -52,12 +52,16 @@ class EnvUtils(unittest.TestCase):
         self.assertTrue(mlrun_p.exists(), f"Expected output file {mlrun_p} not found")
 
     def test_local_simple(self):
-        local_conf = LocalConf(bin_path="/home/xiaoyang/miniconda3/bin/", default_entry="which python")
-        le = LocalEnv(conf=local_conf)
-        print(local_conf)
-        le.prepare()
         code_path = DIRNAME / "tmp_code"
         code_path.mkdir(exist_ok=True)
+        # Get user home dynamically
+        home_bin = str(Path.home() / "miniconda3/bin/")
+        local_conf = LocalConf(bin_path=home_bin, default_entry="which python")
+
+        local_conf.extra_volumes = {str(code_path): "./code"}
+        print(local_conf)
+        le = LocalEnv(conf=local_conf)
+        le.prepare()
         res, code = le.run_ret_code(local_path=str(code_path))
         print(res, code)