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-rw-r--r--ethosu/vela/shared_buffer_allocation.py8
1 files changed, 6 insertions, 2 deletions
diff --git a/ethosu/vela/shared_buffer_allocation.py b/ethosu/vela/shared_buffer_allocation.py
index 335b863f..2bfe5941 100644
--- a/ethosu/vela/shared_buffer_allocation.py
+++ b/ethosu/vela/shared_buffer_allocation.py
@@ -22,6 +22,7 @@ from .architecture_features import Block
from .architecture_features import Kernel
from .architecture_features import SharedBufferArea
from .architecture_features import SHRAMElements
+from .errors import OptionError
from .operation import NpuBlockType
@@ -163,8 +164,11 @@ def find_block_configs_suitable_for_pass_and_shared_buffer(arch, ps):
if arch.override_block_config:
config = alloc.try_block(arch.override_block_config)
- assert config, "Block config override cannot be used"
- return [config]
+ raise OptionError(
+ "--force-block-config",
+ str(arch.override_block_config),
+ "This forced block config value cannot be used; it is not compatible",
+ )
# Constrain the search space if the OFM is smaller than the max block size
# - Add other block search constraints here if required