First contact
Find your way around Linux, identify GPUs and separate activity from allocation.
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Start chapter →Your GPU operations practice
Know what to practice next.
Follow a chapter with guidance, repeat its missions with help hidden, then explain what changed. Your record separates those steps.
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0Saved runs · latest 200 retained
0Missions suggested for another pass
Continue the curriculum
First contact
Find your bearings on an eight-GPU node.
Chapter coverage
Build the whole workflow.
From model to endpoint
Read configuration, budget memory and verify the address your client uses.
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Start chapter →You’re on call
Trace device placement, inspect the fabric and recover a failed endpoint.
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Start chapter →Hardware detective
Correlate NVLink, InfiniBand and ECC evidence. Separate current device state from historical errors.
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Start chapter →Serving engineer
Repair configuration, trade context for concurrency and verify placement without disrupting neighboring workloads.
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Start chapter →Incident command
Diagnose several independent blockers, verify the complete local path and leave a useful handoff.
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Start chapter →Your review queue
Give the difficult parts another pass.
Suggested from your latest completed run: a reasoning retry first, then opened guidance, then guided missions ready for a first challenge. Using the reference is allowed.
Complete your first mission to build a review queue. Nothing is scored before you practice.
Run journal
See how your approach changes.
No saved runs yet. Older completion checkmarks are preserved; detailed run records begin with your next completion.
Records stay in this browser and are shared by people using it. They do not sync to your account or grant Premium access. Clearing site storage removes them. Command counts describe a run; fewer commands do not prove a better investigation. Completion is practice evidence, not certification.