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Doc update to clarify supported / unsupported features

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Ben Sander
2016-08-25 12:36:52 -05:00
parent 8b918b065a
commit b94b8dbd48
2 changed files with 18 additions and 8 deletions
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docs/markdown/hip_kernel_language.md
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@@ -156,7 +156,7 @@ The `__constant__` keyword is supported. The host writes constant memory before
### `__shared__`
The `__shared__` keyword is supported.
`extern __shared__` allows the host to dynamically allocate shared memory and is specified as a launch parameter. This feature is under development.
`extern __shared__` allows the host to dynamically allocate shared memory and is specified as a launch parameter. HIP uses an alternate syntax based on the HIP_DYNAMIC_SHARED macro.
### `__managed__`
Managed memory, including the `__managed__` keyword, are not supported in HIP.
@@ -537,7 +537,6 @@ HIP supports the following atomic operations.
### Caveats and Features Under-Development:
- HIP enables atomic operations on 32-bit integers. Additionally, it supports an atomic float add. AMD hardware, however, implements the float add using a CAS loop, so this function may not perform efficiently.
- wrapping increment and decrement are under development.
## Warp Cross-Lane Functions
@@ -573,8 +572,6 @@ Applications can test whether the target platform supports the any/all instructi
### Warp Shuffle Functions
The following warp shuffle instructions are under development.
Half-float shuffles are not supported. The default width is warpSize---see [Warp Cross-Lane Functions](#warp-cross-lane-functions). Applications should not assume the warpSize is 32 or 64.
```