mirror of
https://github.com/matrix-construct/construct
synced 2024-07-08 03:28:40 +02:00
28 lines
818 B
C
28 lines
818 B
C
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2021 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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/// Broadcast originating from the local leader (index [0]). All threads in the
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/// group participate.
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inline void
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ircd_simt_broadcast_f4lldr(__local float4 *const buf)
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{
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const uint
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li = get_local_id(0),
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ln = get_local_size(0);
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for(uint stride = 1; stride < ln; stride <<= 1)
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{
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if(li < stride)
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buf[li + stride] = buf[li];
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barrier(CLK_LOCAL_MEM_FENCE);
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}
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}
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