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Pim compiler options
See the quick start for a complete command and the documentation index for the compilation pipeline.
Pass these to onnx-mlir; --help also lists inherited ONNX-MLIR options.
Boolean switches default to off unless stated otherwise.
| Option | Purpose / default |
|---|---|
--maccel=PIM |
Select the PIM accelerator. |
--EmitSpatial, --EmitPim, --EmitPimBufferized, --EmitPimCodegen |
Stop at a pipeline stage; default: codegen. |
--core-count=N, --crossbar-size=N, --crossbar-count=N |
Required hardware resources; crossbars are square. |
--pipeline=N |
Static queue-aware throughput selection for final codegen with N > 1; intermediate targets retain the original schedule. Default: 1 (latency PEFT). |
--pim-target-config=PATH |
Target cost/topology configuration; resources must match hardware flags. Default: built-in model. |
--pim-memory-report=summary|none |
Memory report at reports/memory_report.txt; default: summary. |
--pim-only-codegen |
Run the codegen tail on bufferized Pim IR. |
--pim-emit-json |
Also emit per-core JSON instructions. |
--pim-dump-ir |
Write diagnostic IR snapshots with elided large constants; default: off. |
--pim-periodic-diagnostics |
Write optional recurrence and Spatial execution-work reports; default: off. |
--pim-export-spatial-dataflow=none|spatial1|spatial2|spatial3|spatial4|all |
Export graph, trivially merged, scheduled, and realized CSV snapshots under reports/; default: none. |
--pim-conv-lowering=STRATEGY |
auto (default), legacy, depthwise, packed-im2col, streamed-patch, streamed-packed, output-channel-tiled, input-k-tiled, or tiled-2d. |
--pim-conv-im2col-max-elements=N |
Global im2col limit before streaming; default: 1048576. |
--pim-conv-stream-chunk-positions=N |
Output positions per streamed chunk; default: 1024. |
--pim-report-conv-lowering=true|false |
Bounded lowering report; default: true. |
--pim-disable-spatial-planning |
Choose each plan's first dense alternative; ONNX rewrites and graph merging remain enabled. |
--pim-disable-synchronization |
Keep the normal selected schedule and omit wait/sync during code generation. Report a separate zero-cost synchronization estimate for ablation. Removes correctness guarantees for buffer reuse and restart. |
--pim-detect-communication-deadlock |
Check expanded blocking send/receive ordering. |
--pim-verify-bufferization-copy-freedom |
Run the expensive pre-bufferization copy-freedom proof. |