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Pass -gpu= at link time so the Thrust fatbin keeps every architecture #17

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Merged
hfwen0502 merged 1 commit into from
Sep 3, 2026
Merged

Pass -gpu= at link time so the Thrust fatbin keeps every architecture #17

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7 changes: 6 additions & 1 deletion setup.py
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Original file line number Diff line number Diff line change
Expand Up @@ -397,7 +397,12 @@ def find_nvidia_hpc_sdk():
# target missing), causing the link to fail with "cannot find
# -lcublasmp" etc. SBD's GPU path only needs the CUDA runtime, so
# explicitly link -lcudart instead.
extra_link_args=extra_link_args + ['-mp', '-cuda', '-lcudart'],
#
# -gpu= is repeated at link because the device-link step generates the
# final SASS: without it nvc++ silently targets its own default instead
# of the requested arch(es).
extra_link_args=extra_link_args + ['-mp', '-cuda', f'-gpu={gpu_arch}',
'-lcudart'],
)
ext_modules.append(gpu_thrust_ext)

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