On Tue, 5 Dec 2023 19:37:34 GMT, Jatin Bhateja wrote:
>> Srinivas Vamsi Parasa has updated the pull request with a new target base
>> due to a merge or a rebase. The incremental webrev excludes the unrelated
>> changes brought in by the merge/rebase. The pull request contains 17
>> additional
On Tue, 5 Dec 2023 19:33:48 GMT, Jatin Bhateja wrote:
>> Srinivas Vamsi Parasa has updated the pull request with a new target base
>> due to a merge or a rebase. The incremental webrev excludes the unrelated
>> changes brought in by the merge/rebase. The pull request contains 17
>> additional
On Mon, 4 Dec 2023 22:15:24 GMT, Srinivas Vamsi Parasa wrote:
>> The goal is to develop faster sort routines for x86_64 CPUs by taking
>> advantage of AVX2 instructions. This enhancement provides an order of
>> magnitude speedup for Arrays.sort() using int, long, float and double arrays.
>>
On Tue, 5 Dec 2023 17:26:06 GMT, Srinivas Vamsi Parasa wrote:
>> That sounds weird. You can't check for if compiler options should be enabled
>> or not inside source code files.
>>
>> Are you saying that when compiling with GCC 6, it will just silently ignore
>> `-std=c++17`? I'd have assumed
On Mon, 4 Dec 2023 22:15:24 GMT, Srinivas Vamsi Parasa wrote:
>> The goal is to develop faster sort routines for x86_64 CPUs by taking
>> advantage of AVX2 instructions. This enhancement provides an order of
>> magnitude speedup for Arrays.sort() using int, long, float and double arrays.
>>
On Mon, 4 Dec 2023 22:15:24 GMT, Srinivas Vamsi Parasa wrote:
>> The goal is to develop faster sort routines for x86_64 CPUs by taking
>> advantage of AVX2 instructions. This enhancement provides an order of
>> magnitude speedup for Arrays.sort() using int, long, float and double arrays.
>>
On Tue, 5 Dec 2023 11:19:00 GMT, Magnus Ihse Bursie wrote:
>> Hi Marcus (@magicus), please see the updated code which added guards to
>> check for GCC version >= 7.5 in
>> `src/java.base/linux/native/libsimdsort/{avx2-linux-qsort.cpp,
>> avx512-linux-qsort.cpp}`. GCC >= 7.5 is needed to
On Mon, 4 Dec 2023 22:14:14 GMT, Srinivas Vamsi Parasa wrote:
>> Then you must add logic to check for this. Now the build will just fail if
>> building with an older gcc. That is not acceptable.
>
> Hi Marcus (@magicus), please see the updated code which added guards to check
> for GCC version
On Mon, 4 Dec 2023 22:15:24 GMT, Srinivas Vamsi Parasa wrote:
>> The goal is to develop faster sort routines for x86_64 CPUs by taking
>> advantage of AVX2 instructions. This enhancement provides an order of
>> magnitude speedup for Arrays.sort() using int, long, float and double arrays.
>>
On Mon, 4 Dec 2023 22:15:24 GMT, Srinivas Vamsi Parasa wrote:
>> The goal is to develop faster sort routines for x86_64 CPUs by taking
>> advantage of AVX2 instructions. This enhancement provides an order of
>> magnitude speedup for Arrays.sort() using int, long, float and double arrays.
>>
On Mon, 4 Dec 2023 11:48:44 GMT, Magnus Ihse Bursie wrote:
>>> But you are saying that you want to skip building this library unless you
>>> have a gcc version that supports c++17?
>>>
>> Yes, the request is to skip building the simdsort library if GCC version is
>> < 8 as only GCC >= 8
> The goal is to develop faster sort routines for x86_64 CPUs by taking
> advantage of AVX2 instructions. This enhancement provides an order of
> magnitude speedup for Arrays.sort() using int, long, float and double arrays.
>
> For serial sort on random data, this PR shows upto ~7.5x
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