the motivations:
* make the actual input size available to the backends.
(currently the backends have to make a guess from shape/type.)
* make the host logic look a bit similar to wasi_ephemeral_nn.
this is a backend api/abi change.
* Fix vector growth check and typos in core (#9)
* Fix resource cleanup in memory and running modes tests (#10)
* Add end of file empty line in wasm_running_modes_test.cc
- Change `WAMR_ENABLE_COPY_CALLSTACK` to `WAMR_BUILD_COPY_CALL_STACK`, as
`WAMR_BUILD` is the prefix for a command line option.
- Change `WAMR_ENABLE_COPY_CALLSTACK` to `WASM_ENABLE_COPY_CALL_STACK`, as
`WASM_ENABLE` is the prefix for a macro in the source code.
- Change `CALLSTACK` to `CALL_STACK` to align with the existing
`DUMP_CALL_STACK` feature.
- Continue using `WASMCApiFrame` instead of `wasm_frame_t` outside of
*wasm_c_api.xxx* to avoid a typedef redefinition warning, which is
identified by Clang.
it should be byte size, not the number of (fp32) values.
i'm ambivalent about how to deal with the compatibility for
the legacy wamr-specific "wasi_nn". for now, i avoided changing it.
(so that existing tests using the legacy abi, namely test_tensorflow.c
and test_tensorflow_quantized.c, passes as they are.)
if we have any users who still want to use the legacy abi,
i suppose they consider the compatibility is more important
than the consistency with other backends.
cf. https://github.com/bytecodealliance/wasm-micro-runtime/issues/4376
* wasi-nn: fix context lifetime issues
use the module instance context api instead of trying to roll
our own with a hashmap. this fixes context lifetime problems mentioned in
https://github.com/bytecodealliance/wasm-micro-runtime/issues/4313.
namely,
* wasi-nn resources will be freed earlier now. before this change,
they used to be kept until the runtime shutdown. (wasm_runtime_destroy)
after this change, they will be freed together with the associated
instances.
* wasm_module_inst_t pointer uniqueness assumption (which is wrong
after wasm_runtime_deinstantiate) was lifted.
as a side effect, this change also makes a context shared among threads
within a cluster. note that this is a user-visible api/abi breaking change.
before this change, wasi-nn "handles" like wasi_ephemeral_nn_graph were
thread-local. after this change, they are shared among threads within
a cluster, similarly to wasi file descriptors. spec-wise, either behavior
should be ok simply because wasi officially doesn't have threads yet.
althogh i feel the latter semantics is more intuitive, if your application
depends on the thread-local behavior, this change breaks your application.
tested with wamr-wasi-extensions/samples/nn-cli, modified to
call each wasi-nn operations on different threads. (if you are
interested, you can find the modification at
https://github.com/yamt/wasm-micro-runtime/tree/yamt-nn-wip-20250619.)
cf.
https://github.com/bytecodealliance/wasm-micro-runtime/issues/4313https://github.com/bytecodealliance/wasm-micro-runtime/issues/2430
* runtime_lib.cmake: enable WAMR_BUILD_MODULE_INST_CONTEXT for wasi-nn
as we do for wasi (WAMR_BUILD_LIBC_WASI)
currently this is not necessary because context (WASINNContext) is
local to instance. (wasm_module_instance_t)
i plan to make a context shared among instances in a cluster when
fixing https://github.com/bytecodealliance/wasm-micro-runtime/issues/4313.
this is a preparation for that direction.
an obvious alternative is to tweak the module instance context APIs
to allow declaring some kind of contexts instance-local. but i feel,
in this particular case, it's more natural to make "wasi-nn handles"
shared among threads within a "process".
note that, spec-wise, how wasi-nn behaves wrt threads is not defined
at all because wasi officially doesn't have threads yet. i suppose, at
this point, that how wasi-nn interacts with wasi-threads is something
we need to define by ourselves, especially when we are using an outdated
wasi-nn version.
with this change, if a thread attempts to access a context while
another thread is using it, we simply make the operation fail with
the "busy" error. this is intended for the mimimum serialization to
avoid problems like crashes/leaks/etc. this is not intended to allow
parallelism or such.
no functional changes are intended at this point yet.
cf.
https://github.com/bytecodealliance/wasm-micro-runtime/issues/4313https://github.com/bytecodealliance/wasm-micro-runtime/issues/2430
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copied from the linux version.
i'm a bit skeptical with this workaround though.
it might be simpler to prohibit the use of wamr api in these
shared libraries. after all, what these libraries do is nothing
specific to wasm.
an example application with flexible cli options which
aims to allow us to perform any wasi-nn operations.
eg.
```
--load-graph=file=fixture/model.xml,file=fixture/model.bin,id=graph
--init-execution-context=graph-id=graph,id=ctx
--set-input=file=fixture/tensor.bgr,context-id=ctx,dim=1,dim=3,dim=224,dim=224
--compute=context-id=ctx
--get-output=context-id=ctx,file=output.bin
```
as wasi-nn doesn't have these concepts, the best we can do without
risking breaking certain applications here is to pass through tensors
as they are.
this matches wasmtime's behavior.
tested with:
* wasmtime classification-example
(with this change, this example fails on tensor size mismatch
instead of implicitly resizing it.)
* license-plate-recognition-barrier-0007, a converted version
with non-fp32 output. [1]
(with this change, this model outputs integers as expected.)
[1] cd7ebe313b/models/public/license-plate-recognition-barrier-0007
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* static PGO compatible with llvm18 and add CI job to test static PGO on coremark benchmark
* update comments and warning info, bitmaps section in llvm profdata shouldn't be used in PGO
Rearrange the content of do_execute_in_running_mode() in alphabetical
order.
Add an incompatible check for x86_32. Now, all belows will be bypassed:
- jit, fast-jit, multi-tier-jit
- memory64
- multi-memory
- simd
