495290aefd
Co-authored-by: jundu <jun.du@intel.com> Co-authored-by: Gao, Pengfei <pengfei.gao@intel.com>
81 lines
2.5 KiB
Python
81 lines
2.5 KiB
Python
import unittest
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import numpy as np
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import torch
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from sglang.srt.layers.attention.utils import create_flashinfer_kv_indices_triton
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from sglang.srt.utils import get_device
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from sglang.test.ci.ci_register import register_amd_ci, register_cuda_ci
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from sglang.test.test_utils import CustomTestCase
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# Triton kernel unit test for KV indices creation
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register_cuda_ci(est_time=10, suite="stage-b-test-small-1-gpu")
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register_amd_ci(est_time=10, suite="stage-b-test-small-1-gpu-amd")
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class TestCreateKvIndices(CustomTestCase):
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@classmethod
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def setUpClass(cls):
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torch.set_default_device(get_device())
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def _run_test(self, batch, max_batch, max_context_len):
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req_to_token = torch.arange(
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max_batch * max_context_len, dtype=torch.int32, device=get_device()
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).reshape((max_batch, max_context_len))
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req_pool_indices = torch.tensor(
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torch.from_numpy(
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np.random.choice(range(max_batch), size=batch, replace=False)
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),
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dtype=torch.int32,
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device=get_device(),
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)
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paged_kernel_lens = torch.tensor(
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torch.from_numpy(
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np.random.choice(range(max_context_len), size=batch, replace=False)
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),
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dtype=torch.int32,
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device=get_device(),
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)
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kv_indptr = torch.zeros((batch + 1,), dtype=torch.int32, device=get_device())
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kv_indptr[1:] = torch.cumsum(paged_kernel_lens, dim=0)
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# ref
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req_pool_indices_cpu = req_pool_indices.cpu().numpy()
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paged_kernel_lens_cpu = paged_kernel_lens.cpu().numpy()
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kv_indices_ref = torch.cat(
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[
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req_to_token[req_pool_indices_cpu[i], : paged_kernel_lens_cpu[i]]
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for i in range(batch)
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],
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dim=0,
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).contiguous()
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# triton
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kv_indices_triton = torch.empty(
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kv_indptr[-1], dtype=torch.int32, device=get_device()
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)
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create_flashinfer_kv_indices_triton[(batch,)](
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req_to_token,
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req_pool_indices,
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paged_kernel_lens,
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kv_indptr,
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None,
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kv_indices_triton,
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req_to_token.size(1),
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)
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# Check
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self.assertTrue(torch.equal(kv_indices_ref, kv_indices_triton))
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def test_create_kvindices(self):
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BATCH = [1, 37, 1786]
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MAX_BATCH = 4096
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MAX_CONTEXT_LEN = 4096
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for batch in BATCH:
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self._run_test(batch, MAX_BATCH, MAX_CONTEXT_LEN)
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if __name__ == "__main__":
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unittest.main()
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