vx convert to support cuda compatible vortex files

vortex-tui/Cargo.toml

@@ -36,6 +36,12 @@ tokio = { workspace = true, features = ["rt-multi-thread"] }
 vortex = { workspace = true, features = ["tokio"] }
 vortex-datafusion = { workspace = true }
 
+[target.'cfg(target_os = "linux")'.dependencies]
+vortex-cuda = { workspace = true, optional = true }
+
+[features]
+cuda = ["dep:vortex-cuda"]
+
 [lints]
 workspace = true
 

vortex-tui/src/convert.rs

@@ -31,6 +31,9 @@ pub enum Strategy {
     Btrblocks,
     /// Use the Compact compression strategy for more aggressive compression.
     Compact,
+    #[cfg(all(target_os = "linux", feature = "cuda"))]
+    /// Use CUDA-compatible encodings with CudaFlatLayout.
+    Cuda,
 }
 
 /// Command-line flags for the convert command.
@@ -95,6 +98,15 @@ pub async fn exec_convert(session: &VortexSession, flags: ConvertArgs) -> anyhow
     let strategy = match flags.strategy {
         Strategy::Btrblocks => strategy,
         Strategy::Compact => strategy.with_compact_encodings(),
+        #[cfg(all(target_os = "linux", feature = "cuda"))]
+        Strategy::Cuda => {
+            use std::sync::Arc;
+            strategy
+                .with_cuda_compatible_encodings()
+                .with_flat_strategy(Arc::new(
+                    vortex_cuda::layout::CudaFlatLayoutStrategy::default(),
+                ))
+        }
     };
 
     let mut file = File::create(output_path).await?;