[TOPI] Fix GPU Dynamic Op Schedule #7117
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mbrookhart
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mbrookhart
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A couple of nitpicks, but overall, it looks great, awesome work.
| mod, | ||
| [np_indices_result, np_valid_box_count], | ||
| only_vm=False, | ||
| disable_targets=["nvptx"], |
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This tests the empty output VM change 👍
Why disable nvptx?
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There is issue causing segfault from dynamic nms for nvptx, and generally we need thrust for any dynamic shape sorting. For now nvptx is not ready for these operations.
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Makes sense. I'm trying to fix the default sort kernel in #7099, if you want to take a look
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| num_inputs = 25 | ||
| x = [relay.var("x", shape=(relay.Any(),), dtype="float32") for _ in range(num_inputs)] | ||
| z = relay.op.concatenate(x, axis=0) |
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this tests the injective schedule 👍
| score_axis = score_index | ||
| score_shape = (batch_size, num_anchors) | ||
| score_tensor = te.compute(score_shape, lambda i, j: data[i, j, score_axis], tag=tag.ELEMWISE) | ||
| data_buf = tvm.tir.decl_buffer(data.shape, data.dtype, "data_buf", data_alignment=8) |
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This looks fine, but I'm a little surprised it's necessary. Do you have a test case that breaks the current code, or is this mostly for performance?
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When the nms workload is large like in RCNN models, general cuda injective schedule can still cause runtime error even with the improvement of this PR. It's common that any dynamic injective op can have runtime issue with current uniform cuda injective schedule.
This problem is not directly related to nms, but cuda injective schedule. Later we might need to revisit this part for gpu dynamic ops and have a better and more general solution(together with more tests).
| if cfg.is_fallback: | ||
| N, F, Y, X = get_const_tuple(conv.shape) | ||
| if not isinstance(N, int): | ||
| N = 1 |
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Can we add a test that hits this change?
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Yeah we do have a test for this. Now I enabled all targets.
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Thanks @mbrookhart |
* Fix GPU dynamic op schedules * Fix dynamic shape nms * Fix * Fix test format
* Fix GPU dynamic op schedules * Fix dynamic shape nms * Fix * Fix test format
* Fix GPU dynamic op schedules * Fix dynamic shape nms * Fix * Fix test format
* Fix GPU dynamic op schedules * Fix dynamic shape nms * Fix * Fix test format
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This PR limits the resources used by dynamic shape gpu kernels to avoid runtime errors. It also skips
CallPackedin vm if kernel has only one output and this output is empty, like (1, 0, 6).After this PR, TF and PT object detection models should be runnable on Nvidia GPU.
@zhiics @Laurawly @mbrookhart