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[PAL] fix compatibility issues on Sunrise #525

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Merged
MC952-arch merged 1 commit into from
Aug 14, 2026
+9 −0
Merged

[PAL] fix compatibility issues on Sunrise #525

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8 changes: 8 additions & 0 deletions flagcx/adaptor/ccl/pccl_adaptor.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -207,6 +207,14 @@ flagcxResult_t pcclAdaptorAllReduce(const void *sendbuff, void *recvbuff,
size_t count, flagcxDataType_t datatype,
flagcxRedOp_t op, flagcxInnerComm_t comm,
flagcxStream_t stream) {
// FlagCX bypasses PyTorch; ensure the comm's device is active.
if (comm != nullptr && comm->base != nullptr) {
int comm_dev = -1;
if (pcclCommCuDevice(comm->base, &comm_dev) == pcclSuccess &&
comm_dev >= 0) {
tangSetDevice(comm_dev);
}
}
return (flagcxResult_t)p2f_ret_map[pcclAllReduce(
sendbuff, recvbuff, count, f2p_datatype_map[datatype],
f2p_reduceop_map[op], comm->base, stream->base)];
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1 change: 1 addition & 0 deletions plugin/torch/_build_config.py
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Expand Up @@ -215,6 +215,7 @@ def get_device_config(adaptor_flag):
]
library_dirs += [
torch_ptpu_dir,
os.path.join(tang_toolkit_dir, "lib"),
os.path.join(tang_toolkit_dir, "lib", "linux-x86_64"),
]
libs += [f":{c_so_basename}", "tangrt_shared"]
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