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Co-authored-by: frob <rick+github@frob.com.au>

The macos-13 is x86, while macos-13-xlarge is arm64

Co-authored-by: Richard Lyons <frob@cloudstaff.com>

StatusError was unreachable, the client always checked for error messages in the response body first, and the server always includes error messages with HTTP error status codes.

As in the commit 44b466ee, the default context length has been increased to 4096.

Reporting params.NumGPULayers can be misleading because it is the
requested number of layers, not the actual number that is loaded.
While they are often the same, there are cases where they might mismatch,
such as if the GPU backend is missing.

We're not currently using it, even in cases where we could. Disabling
it improves generation performance by 10-30% with multiple GPUs.

* Only load supported models on new engine

Verify the model is supported before trying to load

* int: testcase for all library models

We don't get valid UUIDs for AMD GPUs on Windows, so the best option
is to use the ordinal IDs. This brings us in line with what we currently
do on the Ollama server - the only exception is AMD GPUs on Linux, which
falls back to using ordinal IDs. The GGML implementation has no fallback
but it doesn't appear to occur for any of the GPUs that we support.

It's also possible that there are collisions between ordinal IDs for
different libraries - however the only places where we use them are
AMD on Windows and Metal on Mac, which can never occur on the same
system.

also removes stale model dir instructions for windows

The current scheduler algorithm of picking the paralellism based on available
VRAM complicates the upcoming dynamic layer memory allocation algorithm.  This
changes the default to 1, with the intent going forward that parallelism is
explicit and will no longer be dynamically determined.  Removal of the dynamic
logic will come in a follow up.

* API: expose context size of loaded models

* CLI: add context UX

This adds a column in the ps output to show the models context size.

switch a few constants to variables

The root cause was an unclean upgrade - this code is fine.

This reverts commit 45f216a9.

usage example:
  go test --tags=integration,perf -count 1 ./integration -v -timeout 1h -run TestModelsPerf 2>&1 | tee int.log
  cat int.log | grep MODEL_PERF_HEADER | cut -f2- -d: > perf.csv
  cat int.log | grep MODEL_PERF_DATA | cut -f2- -d: >> perf.csv

Favor the dmg now.

This adds some extra logs to make the new engine a bit more consistent
with the llama engine.

This is causing segfaults, so disable it. Currently UUIDs are only
used for debugging purposes, although they planned to be used in
additional ways in the future.

Bug #11211

this tensor isn't compatible with cuda when quantized to q4_K so skip it

* update patches

* cherry pick metal mean kernel

* cherry pick cuda mean kernel

* gemma3n