Error when setting number of threads in global thread pool with rayon_wasm

[mtb0x1]

Running the code below in browser after compiling it to wasm, results in an error. (src :

llama2.rs.wasm/port1/src/lib.rs

Lines 551 to 559 in ee1034c

	//@todo ...
	//value: ThreadPoolBuildError
	//{ kind: IOError(Error { kind: Unsupported, message: "operation not supported on this platform" }) }
	/*let cpus_in_use = (cpus as f64*0.75) as usize;
	ThreadPoolBuilder::new()
	.num_threads(cpus_in_use)
	.build_global()
	.unwrap();*/

)

Code :

use rayon_wasm::ThreadPoolBuilder;


let cpus_in_use =5;
ThreadPoolBuilder::new()
.num_threads(cpus_in_use)
.build_global()
.unwrap();

Result :

value: ThreadPoolBuildError { kind: IOError(Error { kind: Unsupported, message: "operation not supported on this platform" }) }

Related : rayon-rs/rayon#1081

[mtb0x1]

Switched to wasm-bindgen-rayon as recommended in rayon-rs/rayon#1081

Now facing issue below.

Uncaught (in promise) DOMException: Worker.postMessage: The WebAssembly.Memory object cannot be serialized. The Cross-Origin-Opener-Policy and Cross-Origin-Embedder-Policy HTTP headers can be used to enable this.
    _workers http://localhost:8080/pkg/snippets/wasm-bindgen-rayon-7afa899f36665473/src/workerHelpers.js:98
    startWorkers http://localhost:8080/pkg/snippets/wasm-bindgen-rayon-7afa899f36665473/src/workerHelpers.js:78
    __wbg_startWorkers_6fd3af285ea11136 http://localhost:8080/pkg/port1.js:421
    initThreadPool http://localhost:8080/pkg/port1.js:148
    run http://localhost:8080/:72
    async* http://localhost:8080/:99

[mtb0x1]

Using www_server.py and setting required headers results in another issue :

TypeError: error loading dynamically imported module: http://localhost:8080/pkg/
TypeError: error loading dynamically imported module: http://localhost:8080/pkg/