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| author | erik.andersson@arm.com <erik.andersson@arm.com> | 2021-03-24 10:32:09 +0100 |
|---|---|---|
| committer | erik.andersson@arm.com <erik.andersson@arm.com> | 2021-03-30 09:20:00 +0200 |
| commit | 3438c929528583bc019055ad7057c08271b0cee7 (patch) | |
| tree | ea0f8af0e5f23e567c6d31f4f7c639a0e94f6dbf /ethosu/vela/tensor_allocation.py | |
| parent | 9bb1e2ed361286769c362f002910d1dbd1736b05 (diff) | |
| download | ethos-u-vela-3438c929528583bc019055ad7057c08271b0cee7.tar.gz | |
MLBEDSW-4219: Add tensor allocation info to summary
Added the theoretically minimum max memory usage and
the allocator overhead to the Vela summary.
Signed-off-by: erik.andersson@arm.com <erik.andersson@arm.com>
Change-Id: If373dfeaac50d6f8b56554d435bf22af2c3acda3
Diffstat (limited to 'ethosu/vela/tensor_allocation.py')
| -rw-r--r-- | ethosu/vela/tensor_allocation.py | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/ethosu/vela/tensor_allocation.py b/ethosu/vela/tensor_allocation.py index 621073a3..b2ea7de6 100644 --- a/ethosu/vela/tensor_allocation.py +++ b/ethosu/vela/tensor_allocation.py @@ -142,6 +142,17 @@ def print_allocation(lrs, mem_area, mem_type_set, sg, verbose_allocation): print() +def calculate_allocation_efficiency(lrs): + lr_set = set(lrs.ranges.values()) + + size_at_time = [0] * (1 + max(lr.end_time for lr in lr_set)) + for lr in lr_set: + for t in range(lr.start_time, lr.end_time + 1): + size_at_time[t] += lr.size + + return max(size_at_time) + + def allocate_tensors( nng, sg, @@ -199,6 +210,7 @@ def allocate_tensors( print_allocation(lrs, mem_area, mem_type_set, sg, verbose_allocation) if mem_area == MemArea.Sram: + sg.min_mem_usage = calculate_allocation_efficiency(lrs) # Mark Sram usage for all subgraphs for sg_ in nng.subgraphs: mark_sram_used_for_cascaded_passes(sg_, lrs) |