kernel dispatch ok; need to fix lifetime issues

benches/feature.rs

@@ -14,7 +14,8 @@ use poc_kokkos_rs::{
 
 // 1D regular for init & populating
 fn f1(length: usize) {
-    let mut v_y = ViewOwned::new_from_data(vec![0.0; length], Layout::Right, [length]);
+    let mut v_y: ViewOwned<'static, 1, _> =
+        ViewOwned::new_from_data(vec![0.0; length], Layout::Right, [length]);
     black_box(&mut v_y); // prevents the first init to be optimized away
     let execp = ExecutionPolicy {
         space: ExecutionSpace::DeviceCPU,

src/routines/dispatch.rs

@@ -168,8 +168,12 @@ cfg_if::cfg_if! {
                     let chunk_size = n_items / num_cpus::get() + 1;
                     // leak indices so that they continue to exist during all threads execution
                     let indices = range.collect::<Vec<usize>>().leak();
+                    // dispatch the kernel through raw pointers copies
+                    let kernel_ptr = Box::into_raw(kernel);
                     let handles: Vec<_> = indices.chunks(chunk_size).map(|chunk: &'static [usize]| {
-                        std::thread::spawn(|| chunk.iter().map(|idx_ref| KernelArgs::Index1D(*idx_ref)).for_each(kernel))
+                        // rebuild the kernel from the copied raw pointer
+                        let loc_kernel: ForKernelType<N> = unsafe { Box::from_raw(kernel_ptr) };
+                        std::thread::spawn(|| chunk.iter().map(|idx_ref| KernelArgs::Index1D(*idx_ref)).for_each(loc_kernel))
                     }).collect();
 
                     for handle in handles {