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fix: update Blackwell log/error messages to include SM12x#18751

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Kangyan-Zhou merged 1 commit intosgl-project:mainfrom
blake-snc:fix/blackwell-error-messages-sm12x
Feb 15, 2026
Merged

fix: update Blackwell log/error messages to include SM12x#18751
Kangyan-Zhou merged 1 commit intosgl-project:mainfrom
blake-snc:fix/blackwell-error-messages-sm12x

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@blake-snc blake-snc commented Feb 12, 2026

Summary

  • Three warning/error messages in server_args.py reference only "SM100" but the code uses is_blackwell_supported() which covers both SM100 and SM12x (consumer Blackwell, DGX Spark)
  • Updated messages to say "Blackwell" or "SM100/SM12x" to avoid confusing users on SM12x devices

Changes

Line Before After
1204 ...on SM100. ...on Blackwell.
1369 Detected SM100 and MXFP4... Detected Blackwell and MXFP4...
1858 ...Blackwell GPUs (SM100)... ...Blackwell GPUs (SM100/SM12x)...

Context

is_blackwell_supported() in common.py checks device_capability_majors=[10, 12], so it returns True for both SM100 (datacenter Blackwell) and SM12x (consumer Blackwell / DGX Spark). The log and error messages should reflect this.

No behavior changes — only string literals updated.

Test plan

  • Grep for remaining "SM100" references that should say "Blackwell"
  • Existing CI tests pass (no behavior change)

Identified on DGX Spark (SM121a) hardware provided by Second Nature Computing, an applied AI lab.

🤖 Generated with Claude Code

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Three warning/error messages in server_args.py hardcoded "SM100" but
the code checks `is_blackwell_supported()` which covers both SM100
and SM12x (consumer Blackwell / DGX Spark). Updated messages to say
"Blackwell" or "SM100/SM12x" so users on SM12x devices don't get
confused by messages referencing only SM100.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
@blake-snc blake-snc force-pushed the fix/blackwell-error-messages-sm12x branch from a5ac44c to d03ac15 Compare February 13, 2026 21:00
@Kangyan-Zhou Kangyan-Zhou merged commit 57f7e06 into sgl-project:main Feb 15, 2026
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2 participants