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[BUG] A Photon stage wrapper mapped to WholeStageCodegen takes its input Exchange into the cluster, so that exec is apportioned to the wrapper's stage

Status: Open.

#2161 In NVIDIA/cudf-spark-tools;

· jtwynne opened on Sep 11, 2026

[BUG] Photon operators from Databricks 17.3 fall outside the 13.3 mapping file and are reported as unsupported Triage execs

Status: Open.

#2158 In NVIDIA/cudf-spark-tools;

· jtwynne opened on Sep 11, 2026

[FEA] Let heuristics declare their own version requirements instead of inline comparisons

? - Needs Triage

autotuner

feature requestNew feature or requestNew feature or request

Status: Open.

#2157 In NVIDIA/cudf-spark-tools;

· amahussein opened on Sep 10, 2026

[BUG] QualX supported-stage filter is computed but not applied to feature aggregation

? - Needs Triage

bugSomething isn't workingSomething isn't working

qualxAn issue or PR related to the implementation of QualX moduleAn issue or PR related to the implementation of QualX module

Status: Open.

Bug

#2156 In NVIDIA/cudf-spark-tools;

· amahussein opened on Sep 10, 2026

[BUG] SQL accumulator minimum can report a synthetic zero

bugSomething isn't workingSomething isn't working

core_toolsScope the core module (scala)Scope the core module (scala)

Status: Open.

Bug

#2155 In NVIDIA/cudf-spark-tools;

· amahussein opened on Sep 10, 2026

Define effective executor basis for downward shuffle sizing with dynamic allocation

Status: Open.

#2153 In NVIDIA/cudf-spark-tools;

· parthosa opened on Sep 9, 2026

[BUG] median columns publish a truncating rolling mean, not a median

? - Needs Triage

api_changeA change affecting the output (add/remove/rename files, add/remove/rename columns)A change affecting the output (add/remove/rename files, add/remove/rename columns)

bugSomething isn't workingSomething isn't working

core_toolsScope the core module (scala)Scope the core module (scala)

Status: Open.

Bug

#2140 In NVIDIA/cudf-spark-tools;

· amahussein opened on Sep 4, 2026

Follow-ups from the downward shuffle partition pass (#2129)

Status: Open.

#2133 In NVIDIA/cudf-spark-tools;

· parthosa opened on Sep 1, 2026

[FEA] Give the AutoTuner a signal for GPU memory skew within a stage

autotuner

feature requestNew feature or requestNew feature or request

Status: Open.

Task

#2132 In NVIDIA/cudf-spark-tools;

· amahussein opened on Sep 1, 2026

[FEA] Recognize noop V2 DataFrame writes and emit correct write-operation metadata

Status: Open.

#2126 In NVIDIA/cudf-spark-tools;

· parthosa opened on Aug 20, 2026

[BUG] Update spark.rapids.sql.reader.multithreaded.combine.sizeBytes recommendation to default

? - Needs Triage

autotuner

bugSomething isn't workingSomething isn't working

Status: Open.

#2119 In NVIDIA/cudf-spark-tools;

· parthosa opened on Aug 7, 2026

Iceberg V2 scan bytes missing from data source output

? - Needs Triage

feature requestNew feature or requestNew feature or request

Status: Open.

#2115 In NVIDIA/cudf-spark-tools;

· parthosa opened on Jul 31, 2026