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Optimize s/drot function for POWER10 

This patch makes use of new POWER10 vector pair instructions for
loads and stores.
tags/v0.3.14^2
Rajalakshmi Srinivasaraghavan 4 years ago
parent
d6cf67778c
commit
439b93f6d2
4 changed files with 341 additions and 2 deletions
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  1. +21
    -1
      kernel/power/drot.c
  2. +148
    -0
      kernel/power/drot_microk_power10.c
  3. +21
    -1
      kernel/power/srot.c
  4. +151
    -0
      kernel/power/srot_microk_power10.c

+ 21
- 1
kernel/power/drot.c View File

@@ -39,9 +39,11 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#pragma GCC optimize "O1"

#if defined(POWER8) || defined(POWER9) || defined(POWER10)
#if defined(__VEC__) || defined(__ALTIVEC__)
#if defined(POWER8) || defined(POWER9)
#include "drot_microk_power8.c"
#elif defined(POWER10)
#include "drot_microk_power10.c"
#endif
#endif

@@ -115,12 +117,30 @@ int CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT
if ( (inc_x == 1) && (inc_y == 1) )
{

#if defined(POWER10)
if ( n >= 16 )
{
BLASLONG align = ((32 - ((uintptr_t)y & (uintptr_t)0x1F)) >> 3) & 0x3;
for (i = 0; i < align; i++) {
temp = c*x[i] + s*y[i] ;
y[i] = c*y[i] - s*x[i] ;
x[i] = temp ;
}
}
BLASLONG n1 = (n-i) & -16;
if ( n1 > 0 )
{
drot_kernel_16(n1,&x[i], &y[i], c, s);
i+=n1;
}
#else
BLASLONG n1 = n & -16;
if ( n1 > 0 )
{
drot_kernel_16(n1, x1, y1, c, s);
i=n1;
}
#endif

while(i < n)
{


+ 148
- 0
kernel/power/drot_microk_power10.c View File

@@ -0,0 +1,148 @@
/***************************************************************************
Copyright (c) 2021, The OpenBLAS Project
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
3. Neither the name of the OpenBLAS project nor the names of
its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/

#define HAVE_KERNEL_16 1

static void drot_kernel_16 (long n, double *x, double *y, double c, double s)
{
__asm__
(
XXSPLTD_S(36,%x5,0) // load c to both dwords
XXSPLTD_S(37,%x6,0) // load s to both dwords
"lxvp 32, 0(%3) \n\t" // load x
"lxvp 34, 32(%3) \n\t"
"lxvp 48, 0(%4) \n\t" // load y
"lxvp 50, 32(%4) \n\t"

"addic. %2, %2, -8 \n\t"
"ble two%= \n\t"

".align 5 \n"
"one%=: \n\t"

"xvmuldp 40, 32, 36 \n\t" // c * x
"xvmuldp 41, 33, 36 \n\t"
"xvmuldp 42, 34, 36 \n\t"
"xvmuldp 43, 35, 36 \n\t"

"xvmuldp 44, 32, 37 \n\t" // s * x
"xvmuldp 45, 33, 37 \n\t"
"xvmuldp 46, 34, 37 \n\t"
"xvmuldp 47, 35, 37 \n\t"

"lxvp 32, 64(%3) \n\t" // load x
"lxvp 34, 96(%3) \n\t"
"xvmuldp 52, 48, 36 \n\t" // c * y
"xvmuldp 53, 49, 36 \n\t"
"xvmuldp 54, 50, 36 \n\t"
"xvmuldp 55, 51, 36 \n\t"

"xvmuldp 38, 48, 37 \n\t" // s * y
"xvmuldp 39, 49, 37 \n\t"
"xvmuldp 56, 50, 37 \n\t"
"xvmuldp 57, 51, 37 \n\t"

"lxvp 48, 64(%4) \n\t" // load y
"lxvp 50, 96(%4) \n\t"

"xvadddp 40, 40, 38 \n\t" // c * x + s * y
"xvadddp 41, 41, 39 \n\t" // c * x + s * y
"xvadddp 42, 42, 56 \n\t" // c * x + s * y
"xvadddp 43, 43, 57 \n\t" // c * x + s * y

"stxvp 40, 0(%3) \n\t" // store x
"stxvp 42, 32(%3) \n\t"

"xvsubdp 52, 52, 44 \n\t" // c * y - s * x
"xvsubdp 53, 53, 45 \n\t" // c * y - s * x
"xvsubdp 54, 54, 46 \n\t" // c * y - s * x
"xvsubdp 55, 55, 47 \n\t" // c * y - s * x

"stxvp 52, 0(%4) \n\t" // store y
"stxvp 54, 32(%4) \n\t"

"addi %3, %3, 64 \n\t"
"addi %4, %4, 64 \n\t"

"addic. %2, %2, -8 \n\t"
"bgt one%= \n"

"two%=: \n\t"

"xvmuldp 40, 32, 36 \n\t" // c * x
"xvmuldp 41, 33, 36 \n\t"
"xvmuldp 42, 34, 36 \n\t"
"xvmuldp 43, 35, 36 \n\t"

"xvmuldp 52, 48, 36 \n\t" // c * y
"xvmuldp 53, 49, 36 \n\t"
"xvmuldp 54, 50, 36 \n\t"
"xvmuldp 55, 51, 36 \n\t"

"xvmuldp 44, 32, 37 \n\t" // s * x
"xvmuldp 45, 33, 37 \n\t"
"xvmuldp 46, 34, 37 \n\t"
"xvmuldp 47, 35, 37 \n\t"

"xvmuldp 38, 48, 37 \n\t" // s * y
"xvmuldp 39, 49, 37 \n\t"
"xvmuldp 56, 50, 37 \n\t"
"xvmuldp 57, 51, 37 \n\t"

"xvadddp 40, 40, 38 \n\t" // c * x + s * y
"xvadddp 41, 41, 39 \n\t" // c * x + s * y
"xvadddp 42, 42, 56 \n\t" // c * x + s * y
"xvadddp 43, 43, 57 \n\t" // c * x + s * y

"stxvp 40, 0(%3) \n\t" // store x
"stxvp 42, 32(%3) \n\t"
"xvsubdp 52, 52, 44 \n\t" // c * y - s * x
"xvsubdp 53, 53, 45 \n\t" // c * y - s * x
"xvsubdp 54, 54, 46 \n\t" // c * y - s * x
"xvsubdp 55, 55, 47 \n\t" // c * y - s * x

"stxvp 52, 0(%4) \n\t" // store y
"stxvp 54, 32(%4) \n\t"

"#n=%2 x=%0=%3 y=%1=%4 c=%5 s=%6\n"
:
"+m" (*x),
"+m" (*y),
"+r" (n), // 2
"+b" (x), // 3
"+b" (y) // 4
:
"d" (c), // 5
"d" (s) // 6
:
"cr0",
"vs32","vs33","vs34","vs35","vs36","vs37","vs38","vs39",
"vs40","vs41","vs42","vs43","vs44","vs45","vs46","vs47",
"vs48","vs49","vs50","vs51","vs52","vs53","vs54","vs55",
"vs56","vs57"
);
}

+ 21
- 1
kernel/power/srot.c View File

@@ -39,9 +39,11 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#pragma GCC optimize "O1"

#if defined(POWER8) || defined(POWER9) || defined(POWER10)
#if defined(__VEC__) || defined(__ALTIVEC__)
#if defined(POWER8) || defined(POWER9)
#include "srot_microk_power8.c"
#elif defined(POWER10)
#include "srot_microk_power10.c"
#endif
#endif

@@ -115,6 +117,23 @@ int CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT
if ( (inc_x == 1) && (inc_y == 1) )
{

#if defined(POWER10)
if ( n >= 16 )
{
BLASLONG align = ((32 - ((uintptr_t)y & (uintptr_t)0x1F)) >> 2) & 0x7;
for (i = 0; i < align; i++) {
temp = c*x[i] + s*y[i] ;
y[i] = c*y[i] - s*x[i] ;
x[i] = temp ;
}
}
BLASLONG n1 = (n-i) & -16;
if ( n1 > 0 )
{
srot_kernel_16(n1, &x1[i], &y1[i], c, s);
i+=n1;
}
#else
BLASLONG n1 = n & -16;
if ( n1 > 0 )
{
@@ -122,6 +141,7 @@ int CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT
i=n1;
}

#endif
while(i < n)
{
temp = c*x[i] + s*y[i] ;


+ 151
- 0
kernel/power/srot_microk_power10.c View File

@@ -0,0 +1,151 @@
/***************************************************************************
Copyright (c) 2021, The OpenBLAS Project
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
3. Neither the name of the OpenBLAS project nor the names of
its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/

#define HAVE_KERNEL_16 1

static void srot_kernel_16 (long n, float *x, float *y, float c, float s)
{
__asm__
(
"xscvdpspn 36, %x5 \n\t" // load c to all words
"xxspltw 36, 36, 0 \n\t"

"xscvdpspn 37, %x6 \n\t" // load s to all words
"xxspltw 37, 37, 0 \n\t"
"lxvp 32, 0(%3) \n\t" // load x
"lxvp 34, 32(%3) \n\t"
"lxvp 48, 0(%4) \n\t" // load y
"lxvp 50, 32(%4) \n\t"

"addic. %2, %2, -16 \n\t"
"ble two%= \n\t"

".align 5 \n"
"one%=: \n\t"

"xvmulsp 40, 32, 36 \n\t" // c * x
"xvmulsp 41, 33, 36 \n\t"
"xvmulsp 42, 34, 36 \n\t"
"xvmulsp 43, 35, 36 \n\t"

"xvmulsp 44, 32, 37 \n\t" // s * x
"xvmulsp 45, 33, 37 \n\t"
"xvmulsp 46, 34, 37 \n\t"
"xvmulsp 47, 35, 37 \n\t"

"lxvp 32, 64(%3) \n\t" // load x
"lxvp 34, 96(%3) \n\t"
"xvmulsp 52, 48, 36 \n\t" // c * y
"xvmulsp 53, 49, 36 \n\t"
"xvmulsp 54, 50, 36 \n\t"
"xvmulsp 55, 51, 36 \n\t"

"xvmulsp 38, 48, 37 \n\t" // s * y
"xvmulsp 39, 49, 37 \n\t"
"xvmulsp 56, 50, 37 \n\t"
"xvmulsp 57, 51, 37 \n\t"

"lxvp 48, 64(%4) \n\t" // load y
"lxvp 50, 96(%4) \n\t"

"xvaddsp 40, 40, 38 \n\t" // c * x + s * y
"xvaddsp 41, 41, 39 \n\t" // c * x + s * y
"xvaddsp 42, 42, 56 \n\t" // c * x + s * y
"xvaddsp 43, 43, 57 \n\t" // c * x + s * y

"stxvp 40, 0(%3) \n\t" // store x
"stxvp 42, 32(%3) \n\t"

"xvsubsp 52, 52, 44 \n\t" // c * y - s * x
"xvsubsp 53, 53, 45 \n\t" // c * y - s * x
"xvsubsp 54, 54, 46 \n\t" // c * y - s * x
"xvsubsp 55, 55, 47 \n\t" // c * y - s * x

"stxvp 52, 0(%4) \n\t" // store y
"stxvp 54, 32(%4) \n\t"

"addi %3, %3, 64 \n\t"
"addi %4, %4, 64 \n\t"

"addic. %2, %2, -16 \n\t"
"bgt one%= \n"

"two%=: \n\t"

"xvmulsp 40, 32, 36 \n\t" // c * x
"xvmulsp 41, 33, 36 \n\t"
"xvmulsp 42, 34, 36 \n\t"
"xvmulsp 43, 35, 36 \n\t"

"xvmulsp 52, 48, 36 \n\t" // c * y
"xvmulsp 53, 49, 36 \n\t"
"xvmulsp 54, 50, 36 \n\t"
"xvmulsp 55, 51, 36 \n\t"

"xvmulsp 44, 32, 37 \n\t" // s * x
"xvmulsp 45, 33, 37 \n\t"
"xvmulsp 46, 34, 37 \n\t"
"xvmulsp 47, 35, 37 \n\t"

"xvmulsp 38, 48, 37 \n\t" // s * y
"xvmulsp 39, 49, 37 \n\t"
"xvmulsp 56, 50, 37 \n\t"
"xvmulsp 57, 51, 37 \n\t"

"xvaddsp 40, 40, 38 \n\t" // c * x + s * y
"xvaddsp 41, 41, 39 \n\t" // c * x + s * y
"xvaddsp 42, 42, 56 \n\t" // c * x + s * y
"xvaddsp 43, 43, 57 \n\t" // c * x + s * y

"stxvp 40, 0(%3) \n\t" // store x
"stxvp 42, 32(%3) \n\t"
"xvsubsp 52, 52, 44 \n\t" // c * y - s * x
"xvsubsp 53, 53, 45 \n\t" // c * y - s * x
"xvsubsp 54, 54, 46 \n\t" // c * y - s * x
"xvsubsp 55, 55, 47 \n\t" // c * y - s * x

"stxvp 52, 0(%4) \n\t" // store y
"stxvp 54, 32(%4) \n\t"

"#n=%2 x=%0=%3 y=%1=%4 c=%5 s=%6\n"
:
"+m" (*x),
"+m" (*y),
"+r" (n), // 2
"+b" (x), // 3
"+b" (y) // 4
:
"f" (c), // 5
"f" (s) // 6
:
"cr0",
"vs32","vs33","vs34","vs35","vs36","vs37","vs38","vs39",
"vs40","vs41","vs42","vs43","vs44","vs45","vs46","vs47",
"vs48","vs49","vs50","vs51","vs52","vs53","vs54","vs55",
"vs56","vs57"
);
}

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