[GitHub] [incubator-mxnet] yzhliu commented on a change in pull request #16100: Infra for tvm op runtime dispatch

[GitBox <gi...@apache.org>]

yzhliu commented on a change in pull request #16100: Infra for tvm op runtime dispatch
URL: https://github.com/apache/incubator-mxnet/pull/16100#discussion_r325356720
 
 

 ##########
 File path: python/mxnet/libinfo.py
 ##########
 @@ -110,5 +110,36 @@ def find_include_path():
                                ' or ' + src_incl_path + '\n')
 
 
+def find_conf_path(prefix='tvmop'):
+    """Find TVM op config files.
+
+    Returns
+    -------
+    conf_path : string
+        Path to the config files.
+    """
+    conf_from_env = os.environ.get('MXNET_CONF_PATH')
+    if conf_from_env:
+        if os.path.isfile(conf_from_env):
+            if not os.path.isabs(conf_from_env):
+                logging.warning("MXNET_CONF_PATH should be an absolute path, instead of: %s",
+                                conf_from_env)
+            else:
+                return conf_from_env
+        else:
+            logging.warning("MXNET_CONF_PATH '%s' doesn't exist", conf_from_env)
+
+    curr_path = os.path.dirname(os.path.abspath(os.path.expanduser(__file__)))
+    makefile_path = os.path.join(curr_path, '../../')
+    cmake_build_path = os.path.join(curr_path, '../../build/')
+    candidates_path = [makefile_path, cmake_build_path]
+    candidates_path = [p + prefix + '.conf' for p in candidates_path]
+    conf_path = [p for p in candidates_path if os.path.exists(p) and os.path.isfile(p)]
+    if len(conf_path) == 0:
+        raise RuntimeError('Cannot find the TVM op config.\n' +
+                           'List of candidates:\n' + str('\n'.join(candidates_path)))
 
 Review comment:
   can we fallback to default behavior if config file is missing?

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