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| author | Tim Hall <tim.hall@arm.com> | 2022-05-04 16:20:43 +0100 |
|---|---|---|
| committer | Tim Hall <tim.hall@arm.com> | 2022-05-04 16:26:09 +0100 |
| commit | b5df773e92051004158046b0ed2c7b802198de6e (patch) | |
| tree | 7d738a28a63b66a20f379acbdfc6c3e7c4a98a61 /ethosu/vela/live_range.py | |
| parent | 95b07c1c0fed6a985607131e59a593786d40b389 (diff) | |
| download | ethos-u-vela-b5df773e92051004158046b0ed2c7b802198de6e.tar.gz | |
Revert "MLBEDSW-6263: Use separate tensors for double buffering"
This reverts commit cc5f4de1c35ba44fca7ff6295c6ae846f8242344.
Signed-off-by: Tim Hall <tim.hall@arm.com>
Change-Id: I0fa5babfe9ad9ec668720d04fe1c16d9a9092131
Diffstat (limited to 'ethosu/vela/live_range.py')
| -rw-r--r-- | ethosu/vela/live_range.py | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/ethosu/vela/live_range.py b/ethosu/vela/live_range.py index ccf49297..19d0c11f 100644 --- a/ethosu/vela/live_range.py +++ b/ethosu/vela/live_range.py @@ -63,7 +63,7 @@ class LiveRange: def mark_usage(self, op_time, op_length=1): op_time_start = max(op_time, 0) op_time_end = op_time + op_length - if op_time_end < op_time_start: + if op_time_end <= op_time_start: return self.start_time = min(self.start_time, op_time_start) @@ -325,20 +325,13 @@ def _extract_live_ranges_from_schedule(sg, target_mem_area, target_mem_type_set, rng.mark_usage(time_to_set) - for idx, weight_tens in enumerate(op_info.buffered_weight_tensors): - if weight_tens.mem_type in target_mem_type_set and weight_tens.mem_area == target_mem_area: - rng = lr_graph.get_or_create_range(weight_tens) - start_time = time_to_set - length = 1 - if weight_tens.pre_buffer: - start_time -= 1 - length += 1 - if len(op_info.buffered_weight_tensors) > 1: - last_idx = len(op_info.ofm_depth_slices) % len(op_info.buffered_weight_tensors) - # Double buffering: reduce end time of the buffer that is not used last - if last_idx != idx: - length -= 1 - rng.mark_usage(start_time, length) + weight_tens = op_info.buffered_weight_tensor + if weight_tens and weight_tens.mem_type in target_mem_type_set and weight_tens.mem_area == target_mem_area: + rng = lr_graph.get_or_create_range(weight_tens) + if weight_tens.pre_buffer: + rng.mark_usage(time_to_set - 1, 2) + else: + rng.mark_usage(time_to_set) if time_to_set == lr_graph.current_time: lr_graph.current_time += 2 |