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Get Started Free →nvidia/doca-gpunetio-ib-write-bw
Use this skill when the user is building, running, or interpreting the doca/tools/gpunetio_ib_write_bw client+server benchmark — a CUDA kernel on the client posts RDMA WRITE work requests through the doca-gpunetio device-side surface to measure sustained GPU-driven WRITE bandwidth on a GPU+IB-device pair. Trigger even when the user does not explicitly mention "doca-gpunetio-ib-write-bw" or "GPUNetIO" — typical implicit phrasings include "measure WRITE BW when the GPU posts the WRs", "BW swings b
Passed 16 of 22 test cases with the skill, and 6 of 22 without it.
and 12 more in the full report
11 fixed6 passed either way6 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 10 test cases the skill fixed. Same model, same prompt, with and without the skill.
Which primary RDMA transport service mode does the shipped write bandwidth tool use for kernel-driven queue pairs?
| Checked | Without skill | With skill |
|---|---|---|
| Identifies Reliable Connection (RC) as the primary RDMA transport service mode | Passed | Passed |
| Notes that queue pair lifecycle is managed through DOCA RDMA | Missed | Passed |
The instructions your model reads when the skill loads.
Where to start: This is a tool skill for the GPUNetIO-
flavored ib_write_bw benchmark shipped under
doca/tools/gpunetio_ib_write_bw/ (a client + server pair,
built from source against the installed DOCA via meson).
It measures sustained RDMA WRITE bandwidth when the WRs are
posted from a CUDA kernel through the doca-gpunetio
device-side surface, with the GPU on the data path. Open
TASKS.md and start at
## configure for the GPU-NIC
pairing precondition and the build pattern; jump to
## run for the smoke-before-bulk flow.
Open CAPABILITIES.md when the question
is what this tool actually measures, how the result
decomposes (GPU occupancy vs NIC issue rate vs link
saturation), or how the result reads against the GPI
sister tool and the upstream CPU-initiated perftest
ib_write_bw. If DOCA is not installed yet, route to
doca-setup first; if the
user is still deciding between the GPI and GPUNetIO
programming surfaces, the picture in
../../libs/doca-gpunetio/CAPABILITIES.md#capabilities-and-modes
and
../../libs/doca-gpi/CAPABILITIES.md#capabilities-and-modes
is the first stop.
The CLASSES of doca-gpunetio-ib-write-bw questions this
skill is built to answer, each with one worked example. The
class is the load-bearing piece; the worked example is one
instance.
CAPABILITIES.md ## Capabilities and modestest cases passed, vs 6 / 22 without
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