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Merge pull request #35 from psychocrypt/topic-optimizeScatchpadMemAccess 

optimize scratchpad memory layout
This commit is contained in:
fireice-uk 2017-05-26 07:55:52 +01:00 committed by GitHub
parent 86a5174549 af01b2f16d
commit 36afebdd1c
1 changed files with 7 additions and 4 deletions
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11
opencl/cryptonight.cl
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@ -346,7 +346,7 @@ void AESExpandKey256(uint *keybuf)
}
}
#define IDX(x) ((x) * (get_global_size(0)))
#define IDX(x) (x)
__attribute__((reqd_work_group_size(WORKSIZE, 8, 1)))
__kernel void cn0(__global ulong *input, __global uint4 *Scratchpad, __global ulong *states)
@ -357,7 +357,7 @@ __kernel void cn0(__global ulong *input, __global uint4 *Scratchpad, __global ul
uint4 text;
states += (25 * (get_global_id(0) - get_global_offset(0)));
Scratchpad += ((get_global_id(0) - get_global_offset(0)));
Scratchpad += ((get_global_id(0) - get_global_offset(0))) * (0x80000 >> 2);
for(int i = get_local_id(0); i < 256; i += WORKSIZE)
{
@ -367,6 +367,7 @@ __kernel void cn0(__global ulong *input, __global uint4 *Scratchpad, __global ul
AES2[i] = rotate(tmp, 16U);
AES3[i] = rotate(tmp, 24U);
}
barrier(CLK_LOCAL_MEM_FENCE);
((ulong8 *)State)[0] = vload8(0, input);
State[8] = input[8];
@ -418,7 +419,7 @@ __kernel void cn1(__global uint4 *Scratchpad, __global ulong *states)
ulong a[2], b[2];
__local uint AES0[256], AES1[256], AES2[256], AES3[256];
Scratchpad += ((get_global_id(0) - get_global_offset(0)));
Scratchpad += ((get_global_id(0) - get_global_offset(0))) * (0x80000 >> 2);
states += (25 * (get_global_id(0) - get_global_offset(0)));
for(int i = get_local_id(0); i < 256; i += WORKSIZE)
@ -429,6 +430,7 @@ __kernel void cn1(__global uint4 *Scratchpad, __global ulong *states)
AES2[i] = rotate(tmp, 16U);
AES3[i] = rotate(tmp, 24U);
}
barrier(CLK_LOCAL_MEM_FENCE);
a[0] = states[0] ^ states[4];
b[0] = states[2] ^ states[6];
@ -474,7 +476,7 @@ __kernel void cn2(__global uint4 *Scratchpad, __global ulong *states, __global u
ulong State[25];
uint4 text;
Scratchpad += ((get_global_id(0) - get_global_offset(0)));
Scratchpad += ((get_global_id(0) - get_global_offset(0))) * (0x80000 >> 2);
states += (25 * (get_global_id(0) - get_global_offset(0)));
for(int i = get_local_id(0); i < 256; i += WORKSIZE)
@ -485,6 +487,7 @@ __kernel void cn2(__global uint4 *Scratchpad, __global ulong *states, __global u
AES2[i] = rotate(tmp, 16U);
AES3[i] = rotate(tmp, 24U);
}
barrier(CLK_LOCAL_MEM_FENCE);
#if defined(__Tahiti__) || defined(__Pitcairn__)