MLA paged prefill causal h16 ckv512 kpe64 ps64
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mla-paged-attention
Batched Multi-head Latent Attention prefill with a paged KV cache (page_size=64). Causal mask is applied. Captured from DeepSeek-V3 during incremental prefill with tensor parallel size 8.
Current records
No published measurement for the selected workload.
Implementations
Implementation
Runtime
Best latency
Evidence
Availability
Semantics
Inputs and outputs
q_nopebf16 [total_q, num_qo_heads, head_dim_ckv]
q_pebf16 [total_q, num_qo_heads, head_dim_kpe]
ckv_cachebf16 [num_pages, page_size, head_dim_ckv]
kpe_cachebf16 [num_pages, page_size, head_dim_kpe]
qo_indptrint32 [len_indptr]
kv_indptrint32 [len_indptr]
kv_indicesint32 [num_kv_indices]
kv_last_page_lenint32 [batch_size]
sm_scalefp32 scalar
outputbf16 [total_q, num_qo_heads, head_dim_ckv]
lsefp32 [total_q, num_qo_heads]
Axes and behavior
total_qvariable
num_pagesvariable
page_sizeconstant = 64
batch_sizevariable
len_indptrvariable
head_dim_ckvconstant = 512
head_dim_kpeconstant = 64
num_qo_headsconstant = 16
num_kv_indicesvariable
determinismunspecified
constraintsNo mutation or aliasing
Identity
aliasmla_paged_prefill_causal_h16_ckv512_kpe64_ps64modeldeepseek-v3modeldeepseek-r1sha256ef3691966915…
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