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Add some accelerate details on the readme. (#480)

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Laurent Mazare
2023-08-17 08:26:02 +01:00
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parent 306c8eee7a
commit f708efb19c
1 changed files with 17 additions and 4 deletions
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21
README.md
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@ -144,21 +144,34 @@ Finally, Rust is cool! A lot of the HF ecosystem already has Rust crates, like [
#### Missing symbols when compiling with the mkl feature.
If you get some missing symbols when compiling binaries/tests using the mkl
features, e.g.:
or accelerate features, e.g. for mkl you get:
```
= note: /usr/bin/ld: (....o): in function `blas::sgemm':
.../blas-0.22.0/src/lib.rs:1944: undefined reference to `sgemm_' collect2: error: ld returned 1 exit status
= note: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
= note: use the `-l` flag to specify native libraries to link
= note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname)
= note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo
```
or for accelerate:
```
Undefined symbols for architecture arm64:
"_dgemm_", referenced from:
candle_core::accelerate::dgemm::h1b71a038552bcabe in libcandle_core...
"_sgemm_", referenced from:
candle_core::accelerate::sgemm::h2cf21c592cba3c47 in libcandle_core...
ld: symbol(s) not found for architecture arm64
```
This is likely due to a missing linker flag that was needed to enable the mkl library. You
can try adding the following at the top of your binary:
```
can try adding the following for mkl at the top of your binary:
```rust
extern crate intel_mkl_src;
```
or for accelerate:
```rust
extern crate accelerate_src;
```
#### Cannot run llama example : access to source requires login credentials