fix PT comments

model_compression_toolkit/core/common/graph/memory_graph/compute_graph_max_cut.py

@@ -14,7 +14,6 @@
 # ==============================================================================
 from collections import namedtuple
 from typing import Tuple, List
-import timeout_decorator
 
 from model_compression_toolkit.logger import Logger
 from model_compression_toolkit.constants import OPERATORS_SCHEDULING, MAX_CUT, CUTS, FUSED_NODES_MAPPING
@@ -55,17 +54,16 @@ def solver_wrapper(*args, **kwargs):
 
     while it < n_iter:
         estimate = (u_bound + l_bound) / 2
-        if it == 0:
-            schedule, max_cut_size, cuts = max_cut_astar.solve(estimate=estimate, iter_limit=astar_n_iter)
-        else:
-            try:
-                schedule, max_cut_size, cuts = solver_wrapper(estimate=estimate, iter_limit=astar_n_iter)
-            except timeout_decorator.TimeoutError:
-                if last_result[0] is None:
-                    Logger.critical(f"Max-cut solver stopped on timeout in iteration {it} before finding a solution.")  # pragma: no cover
-                else:
-                    Logger.warning(f"Max-cut solver stopped on timeout in iteration {it}.")
-                    return last_result
+        # Add a timeout of 5 minutes to the solver from the 2nd iteration.
+        try:
+            schedule, max_cut_size, cuts = max_cut_astar.solve(estimate=estimate, iter_limit=astar_n_iter,
+                                                               time_limit=None if it == 0 else 300)
+        except TimeoutError:
+            if last_result[0] is None:
+                Logger.critical(f"Max-cut solver stopped on timeout in iteration {it} before finding a solution.")  # pragma: no cover
+            else:
+                Logger.warning(f"Max-cut solver stopped on timeout in iteration {it}.")
+                return last_result
 
         if schedule is None:
             l_bound = estimate

model_compression_toolkit/core/common/graph/memory_graph/max_cut_astar.py

@@ -14,6 +14,7 @@
 # ==============================================================================
 import copy
 from typing import List, Tuple, Dict, Set
+from time import time
 
 from model_compression_toolkit.core.common import BaseNode
 from model_compression_toolkit.constants import DUMMY_TENSOR, DUMMY_NODE
@@ -122,7 +123,7 @@ def __init__(self, memory_graph: MemoryGraph):
         self.target_cut = Cut([], set(), MemoryElements(elements={target_dummy_b, target_dummy_b2},
                                                         total_size=0))
 
-    def solve(self, estimate: float, iter_limit: int = 500) -> Tuple[List[BaseNode], float, List[Cut]]:
+    def solve(self, estimate: float, iter_limit: int = 500, time_limit: int = None) -> Tuple[List[BaseNode], float, List[Cut]]:
         """
         The AStar solver function. This method runs an AStar-like search on the memory graph,
         using the given estimate as a heuristic gap for solutions to consider.
@@ -131,6 +132,7 @@ def solve(self, estimate: float, iter_limit: int = 500) -> Tuple[List[BaseNode],
             estimate: Cut size estimation to consider larger size of nodes in each
                 expansion step, in order to fasten the algorithm divergence towards a solution.
             iter_limit: An upper limit for the number of expansion steps that the algorithm preforms.
+            time_limit: Optional time limit to the solver. Defaults to None which means no limit.
 
         Returns: A solution (if found within the steps limit) which contains:
         - A schedule for computation of the model (List of nodes).
@@ -146,7 +148,10 @@ def solve(self, estimate: float, iter_limit: int = 500) -> Tuple[List[BaseNode],
 
         expansion_count = 0
 
+        t1 = time()
         while expansion_count < iter_limit and len(open_list) > 0:
+            if time_limit is not None and time() - t1 > time_limit:
+                raise TimeoutError
             # Choose next node to expand
             next_cut = self._get_cut_to_expand(open_list, costs, routes, estimate)
 

requirements.txt

@@ -11,5 +11,4 @@ matplotlib<3.10.0
 scipy
 protobuf
 mct-quantizers==1.5.2
-pydantic<2.0
-timeout-decorator
+pydantic<2.0