[PATCH] GPU Exploitation Infrastructure

Alan Bateman Alan.Bateman at oracle.com
Tue Jan 30 15:35:21 UTC 2018

On 30/01/2018 13:55, Ben Walsh wrote:
> This patch provides the infrastructure to enable the exploitation of a GPU
> by the compiler to accelerate certain suitable Java constructs.
> When enabled, a suitable compiler can attempt to accelerate the following
> Java constructs by launching the corresponding lambda expression on the
> GPU:
>     IntStream.range(<range>).parallel().forEach(<lambda>)
>     IntStream.rangeClosed(<range>).parallel().forEach(<lambda>)
>     where:
>        <range> defines upper and lower bounds
>        <lambda> is a correctly defined lambda expression
> As it stands, with the HotSpot compiler, this patch performs a "no op" in
> the newly added in-built native library method.
> This can be extended so that the HotSpot compiler attempts the
> acceleration detailed above instead.
> I would like to pair with a sponsor to contribute this patch ...
The function prototypes in jvm.h are JVM_* functions rather than JNI 
native method names. You may want to look at adding a JNI function to 
libjava with a wrapper or else use RegisterNatives to map the native 
method name to a JVM_* function.

BTW: Is this something for one the project repos (Valhalla or Panama) 
rather the main line (jdk/jdk)?


More information about the core-libs-dev mailing list