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optimizations for very small sizes

tags/v0.2.12^2
wernsaar 11 years ago
parent
5ae1731fe6
commit
274828fa50
2 changed files with 216 additions and 67 deletions
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  1. +176
    -42
      kernel/x86_64/sgemv_n_4.c
  2. +40
    -25
      kernel/x86_64/sgemv_n_microk_bulldozer-4.c

+ 176
- 42
kernel/x86_64/sgemv_n_4.c View File

@@ -44,12 +44,13 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef HAVE_KERNEL_4x8

static void sgemv_kernel_4x8(BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLONG lda4)
static void sgemv_kernel_4x8(BLASLONG n, FLOAT **ap, FLOAT *xo, FLOAT *y, BLASLONG lda4, FLOAT *alpha)
{
BLASLONG i;
FLOAT *a0,*a1,*a2,*a3;
FLOAT *b0,*b1,*b2,*b3;
FLOAT *x4;
FLOAT x[8];
a0 = ap[0];
a1 = ap[1];
a2 = ap[2];
@@ -60,6 +61,9 @@ static void sgemv_kernel_4x8(BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLON
b3 = a3 + lda4 ;
x4 = x + 4;

for ( i=0; i<8; i++)
x[i] = xo[i] * *alpha;

for ( i=0; i< n; i+=4 )
{

@@ -81,15 +85,19 @@ static void sgemv_kernel_4x8(BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLON

#ifndef HAVE_KERNEL_4x4

static void sgemv_kernel_4x4(BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y)
static void sgemv_kernel_4x4(BLASLONG n, FLOAT **ap, FLOAT *xo, FLOAT *y, FLOAT *alpha)
{
BLASLONG i;
FLOAT *a0,*a1,*a2,*a3;
FLOAT x[4];
a0 = ap[0];
a1 = ap[1];
a2 = ap[2];
a3 = ap[3];

for ( i=0; i<4; i++)
x[i] = xo[i] * *alpha;

for ( i=0; i< n; i+=4 )
{
y[i] += a0[i]*x[0] + a1[i]*x[1] + a2[i]*x[2] + a3[i]*x[3];
@@ -101,32 +109,147 @@ static void sgemv_kernel_4x4(BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y)
#endif

static void sgemv_kernel_4x1(BLASLONG n, FLOAT *ap, FLOAT *x, FLOAT *y)
#ifndef HAVE_KERNEL_4x2

static void sgemv_kernel_4x2( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, FLOAT *alpha) __attribute__ ((noinline));

static void sgemv_kernel_4x2( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, FLOAT *alpha)
{
BLASLONG i;
FLOAT *a0;
a0 = ap;

for ( i=0; i< n; i+=4 )
{
y[i] += a0[i]*x[0];
y[i+1] += a0[i+1]*x[0];
y[i+2] += a0[i+2]*x[0];
y[i+3] += a0[i+3]*x[0];
}
BLASLONG register i = 0;

__asm__ __volatile__
(
"movss (%2) , %%xmm12 \n\t" // x0
"movss (%6) , %%xmm4 \n\t" // alpha
"movss 4(%2) , %%xmm13 \n\t" // x1
"mulss %%xmm4 , %%xmm12 \n\t" // alpha
"mulss %%xmm4 , %%xmm13 \n\t" // alpha
"shufps $0, %%xmm12, %%xmm12 \n\t"
"shufps $0, %%xmm13, %%xmm13 \n\t"

".align 16 \n\t"
".L01LOOP%=: \n\t"
"movups (%3,%0,4), %%xmm4 \n\t" // 4 * y

"movups (%4,%0,4), %%xmm8 \n\t"
"movups (%5,%0,4), %%xmm9 \n\t"
"mulps %%xmm12, %%xmm8 \n\t"
"mulps %%xmm13, %%xmm9 \n\t"
"addps %%xmm8 , %%xmm4 \n\t"
"addq $4 , %0 \n\t"
"addps %%xmm9 , %%xmm4 \n\t"

"movups %%xmm4 , -16(%3,%0,4) \n\t" // 4 * y

"subq $4 , %1 \n\t"
"jnz .L01LOOP%= \n\t"

:
:
"r" (i), // 0
"r" (n), // 1
"r" (x), // 2
"r" (y), // 3
"r" (ap[0]), // 4
"r" (ap[1]), // 5
"r" (alpha) // 6
: "cc",
"%xmm4", "%xmm5",
"%xmm6", "%xmm7",
"%xmm8", "%xmm9", "%xmm10", "%xmm11",
"%xmm12", "%xmm13", "%xmm14", "%xmm15",
"memory"
);

}

#endif

#ifndef HAVE_KERNEL_4x2

static void sgemv_kernel_4x1(BLASLONG n, FLOAT *ap, FLOAT *x, FLOAT *y, FLOAT *alpha) __attribute__ ((noinline));

static void sgemv_kernel_4x1(BLASLONG n, FLOAT *ap, FLOAT *x, FLOAT *y, FLOAT *alpha)
{

BLASLONG register i = 0;
BLASLONG register n1 = n & -8 ;
BLASLONG register n2 = n & 4 ;

__asm__ __volatile__
(
"movss (%2), %%xmm12 \n\t" // x0
"mulss (%6), %%xmm12 \n\t" // alpha
"shufps $0, %%xmm12, %%xmm12 \n\t"

"cmpq $0, %1 \n\t"
"je .L16END%= \n\t"

".align 16 \n\t"
".L01LOOP%=: \n\t"
"movups (%3,%0,4), %%xmm4 \n\t" // 4 * y
"movups 16(%3,%0,4), %%xmm5 \n\t" // 4 * y
"movups (%4,%0,4), %%xmm8 \n\t" // 4 * a
"movups 16(%4,%0,4), %%xmm9 \n\t" // 4 * a
"mulps %%xmm12, %%xmm8 \n\t"
"mulps %%xmm12, %%xmm9 \n\t"
"addps %%xmm4 , %%xmm8 \n\t"
"addps %%xmm5 , %%xmm9 \n\t"

"addq $8 , %0 \n\t"
"movups %%xmm8 , -32(%3,%0,4) \n\t" // 4 * y
"movups %%xmm9 , -16(%3,%0,4) \n\t" // 4 * y

"subq $8 , %1 \n\t"

"jnz .L01LOOP%= \n\t"

".L16END%=: \n\t"

"testq $0x04, %5 \n\t"
"jz .L08LABEL%= \n\t"

"movups (%3,%0,4), %%xmm4 \n\t" // 4 * y
"movups (%4,%0,4), %%xmm8 \n\t" // 4 * a
"mulps %%xmm12, %%xmm8 \n\t"
"addps %%xmm8 , %%xmm4 \n\t"
"movups %%xmm4 , (%3,%0,4) \n\t" // 4 * y
"addq $4 , %0 \n\t"
"subq $4 , %1 \n\t"

".L08LABEL%=: \n\t"
:
:
"r" (i), // 0
"r" (n1), // 1
"r" (x), // 2
"r" (y), // 3
"r" (ap), // 4
"r" (n2), // 5
"r" (alpha) // 6
: "cc",
"%xmm4", "%xmm5",
"%xmm6", "%xmm7",
"%xmm8", "%xmm9", "%xmm10", "%xmm11",
"%xmm12", "%xmm13", "%xmm14", "%xmm15",
"memory"
);

}
static void add_y(BLASLONG n, FLOAT *src, FLOAT *dest, BLASLONG inc_dest, FLOAT *alpha) __attribute__ ((noinline));

static void add_y(BLASLONG n, FLOAT *src, FLOAT *dest, BLASLONG inc_dest, FLOAT *alpha)
#endif

static void add_y(BLASLONG n, FLOAT *src, FLOAT *dest, BLASLONG inc_dest) __attribute__ ((noinline));

static void add_y(BLASLONG n, FLOAT *src, FLOAT *dest, BLASLONG inc_dest)
{
BLASLONG i;
if ( inc_dest != 1 )
{
FLOAT da = *alpha;
for ( i=0; i<n; i++ )
{
*dest += *src * da;
*dest += *src;
src++;
dest += inc_dest;
}
@@ -137,29 +260,25 @@ static void add_y(BLASLONG n, FLOAT *src, FLOAT *dest, BLASLONG inc_dest, FLOAT

__asm__ __volatile__
(
"movss (%2) , %%xmm10 \n\t"
"shufps $0 , %%xmm10 , %%xmm10 \n\t"

".align 16 \n\t"
".L01LOOP%=: \n\t"

"movups (%3,%0,4) , %%xmm12 \n\t"
"movups (%4,%0,4) , %%xmm11 \n\t"
"mulps %%xmm10 , %%xmm12 \n\t"
"addq $4 , %0 \n\t"
"movups (%2,%0,4) , %%xmm12 \n\t"
"movups (%3,%0,4) , %%xmm11 \n\t"
"addps %%xmm12 , %%xmm11 \n\t"
"subq $4 , %1 \n\t"
"movups %%xmm11, -16(%4,%0,4) \n\t"
"addq $4 , %0 \n\t"
"movups %%xmm11, -16(%3,%0,4) \n\t"

"subq $4 , %1 \n\t"
"jnz .L01LOOP%= \n\t"

:
:
"r" (i), // 0
"r" (n), // 1
"r" (alpha), // 2
"r" (src), // 3
"r" (dest) // 4
"r" (src), // 2
"r" (dest) // 3
: "cc",
"%xmm10", "%xmm11", "%xmm12",
"memory"
@@ -228,14 +347,18 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO
ap[2] = ap[1] + lda;
ap[3] = ap[2] + lda;

memset(ybuffer,0,NB*4);
if ( inc_y != 1 )
memset(ybuffer,0,NB*4);
else
ybuffer = y_ptr;

if ( inc_x == 1 )
{


for( i = 0; i < n1 ; i++)
{
sgemv_kernel_4x8(NB,ap,x_ptr,ybuffer,lda4);
sgemv_kernel_4x8(NB,ap,x_ptr,ybuffer,lda4,&alpha);
ap[0] += lda8;
ap[1] += lda8;
ap[2] += lda8;
@@ -247,21 +370,26 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO

if ( n2 & 4 )
{
sgemv_kernel_4x4(NB,ap,x_ptr,ybuffer);
sgemv_kernel_4x4(NB,ap,x_ptr,ybuffer,&alpha);
ap[0] += lda4;
ap[1] += lda4;
ap[2] += lda4;
ap[3] += lda4;
a_ptr += lda4;
x_ptr += 4;
}

for( i = 0; i < ( n2 & 3 ) ; i++)
if ( n2 & 2 )
{
xbuffer[0] = x_ptr[0];
x_ptr += inc_x;
sgemv_kernel_4x1(NB,a_ptr,xbuffer,ybuffer);
sgemv_kernel_4x2(NB,ap,x_ptr,ybuffer,&alpha);
a_ptr += lda*2;
x_ptr += 2;
}


if ( n2 & 1 )
{
sgemv_kernel_4x1(NB,a_ptr,x_ptr,ybuffer,&alpha);
a_ptr += lda;
x_ptr += 1;

}

@@ -280,7 +408,7 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO
x_ptr += inc_x;
xbuffer[3] = x_ptr[0];
x_ptr += inc_x;
sgemv_kernel_4x4(NB,ap,xbuffer,ybuffer);
sgemv_kernel_4x4(NB,ap,xbuffer,ybuffer,&alpha);
ap[0] += lda4;
ap[1] += lda4;
ap[2] += lda4;
@@ -292,16 +420,22 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO
{
xbuffer[0] = x_ptr[0];
x_ptr += inc_x;
sgemv_kernel_4x1(NB,a_ptr,xbuffer,ybuffer);
sgemv_kernel_4x1(NB,a_ptr,xbuffer,ybuffer,&alpha);
a_ptr += lda;

}

}

add_y(NB,ybuffer,y_ptr,inc_y,&alpha);
a += NB;
y_ptr += NB * inc_y;
if ( inc_y != 1 )
{
add_y(NB,ybuffer,y_ptr,inc_y);
y_ptr += NB * inc_y;
}
else
y_ptr += NB ;

}

if ( m3 == 0 ) return;


+ 40
- 25
kernel/x86_64/sgemv_n_microk_bulldozer-4.c View File

@@ -28,9 +28,9 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


#define HAVE_KERNEL_4x8 1
static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLONG lda4) __attribute__ ((noinline));
static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLONG lda4, FLOAT *alpha) __attribute__ ((noinline));

static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLONG lda4)
static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLONG lda4, FLOAT *alpha)
{

BLASLONG register i = 0;
@@ -46,36 +46,38 @@ static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLO
"vbroadcastss 24(%2), %%xmm2 \n\t" // x6
"vbroadcastss 28(%2), %%xmm3 \n\t" // x7

"vbroadcastss (%9), %%xmm8 \n\t" // alpha

"testq $0x04, %1 \n\t"
"jz .L08LABEL%= \n\t"

"vxorps %%xmm4, %%xmm4 , %%xmm4 \n\t"
"vxorps %%xmm5, %%xmm5 , %%xmm5 \n\t"
"vmovups (%3,%0,4), %%xmm4 \n\t" // 4 * y

"vfmaddps %%xmm4, (%4,%0,4), %%xmm12, %%xmm4 \n\t"
"vfmaddps %%xmm5, (%5,%0,4), %%xmm13, %%xmm5 \n\t"
"vfmaddps %%xmm4, (%6,%0,4), %%xmm14, %%xmm4 \n\t"
"vfmaddps %%xmm5, (%7,%0,4), %%xmm15, %%xmm5 \n\t"
"addq $4 , %0 \n\t"
"addq $4 , %0 \n\t"

"vfmaddps %%xmm4, (%4,%8,4), %%xmm0 , %%xmm4 \n\t"
"vfmaddps %%xmm5, (%5,%8,4), %%xmm1 , %%xmm5 \n\t"
"vfmaddps %%xmm4, (%6,%8,4), %%xmm2 , %%xmm4 \n\t"
"vfmaddps %%xmm5, (%7,%8,4), %%xmm3 , %%xmm5 \n\t"
"addq $4 , %8 \n\t"
"addq $4 , %8 \n\t"
"vaddps %%xmm4, %%xmm5, %%xmm6 \n\t"
"vmovups %%xmm6, -16(%3,%0,4) \n\t" // 4 * y
"subq $4 , %1 \n\t"
"vaddps %%xmm5 , %%xmm4, %%xmm4 \n\t"
"vfmaddps -16(%3,%0,4) , %%xmm4, %%xmm8,%%xmm6 \n\t"
"subq $4 , %1 \n\t"
"vmovups %%xmm6, -16(%3,%0,4) \n\t" // 4 * y

".L08LABEL%=: \n\t"

"testq $0x08, %1 \n\t"
"jz .L16LABEL%= \n\t"

"vmovups (%3,%0,4), %%xmm4 \n\t" // 4 * y
"vmovups 16(%3,%0,4), %%xmm5 \n\t" // 4 * y
"vxorps %%xmm4, %%xmm4 , %%xmm4 \n\t"
"vxorps %%xmm5, %%xmm5 , %%xmm5 \n\t"

"vfmaddps %%xmm4, (%4,%0,4), %%xmm12, %%xmm4 \n\t"
"vfmaddps %%xmm5, 16(%4,%0,4), %%xmm12, %%xmm5 \n\t"
@@ -95,6 +97,8 @@ static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLO
"vfmaddps %%xmm4, (%7,%8,4), %%xmm3 , %%xmm4 \n\t"
"vfmaddps %%xmm5, 16(%7,%8,4), %%xmm3 , %%xmm5 \n\t"
"vfmaddps (%3,%0,4) , %%xmm4,%%xmm8,%%xmm4 \n\t"
"vfmaddps 16(%3,%0,4) , %%xmm5,%%xmm8,%%xmm5 \n\t"
"vmovups %%xmm4, (%3,%0,4) \n\t" // 4 * y
"vmovups %%xmm5, 16(%3,%0,4) \n\t" // 4 * y

@@ -111,11 +115,10 @@ static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLO
".align 16 \n\t"
".L01LOOP%=: \n\t"

"vmovups (%3,%0,4), %%xmm4 \n\t" // 4 * y
".align 2 \n\t"
"vmovups 16(%3,%0,4), %%xmm5 \n\t" // 4 * y
"vmovups 32(%3,%0,4), %%xmm6 \n\t" // 4 * y
"vmovups 48(%3,%0,4), %%xmm7 \n\t" // 4 * y
"vxorps %%xmm4, %%xmm4 , %%xmm4 \n\t"
"vxorps %%xmm5, %%xmm5 , %%xmm5 \n\t"
"vxorps %%xmm6, %%xmm6 , %%xmm6 \n\t"
"vxorps %%xmm7, %%xmm7 , %%xmm7 \n\t"

"prefetcht0 192(%4,%0,4) \n\t"
"vfmaddps %%xmm4, (%4,%0,4), %%xmm12, %%xmm4 \n\t"
@@ -157,19 +160,24 @@ static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLO
"vfmaddps %%xmm7, 48(%4,%8,4), %%xmm0 , %%xmm7 \n\t"
"vfmaddps %%xmm6, 32(%5,%8,4), %%xmm1 , %%xmm6 \n\t"
"vfmaddps %%xmm7, 48(%5,%8,4), %%xmm1 , %%xmm7 \n\t"
"addq $16, %0 \n\t"
"vfmaddps %%xmm6, 32(%6,%8,4), %%xmm2 , %%xmm6 \n\t"
"vfmaddps %%xmm7, 48(%6,%8,4), %%xmm2 , %%xmm7 \n\t"
"vfmaddps %%xmm6, 32(%7,%8,4), %%xmm3 , %%xmm6 \n\t"
"vfmaddps %%xmm7, 48(%7,%8,4), %%xmm3 , %%xmm7 \n\t"
"addq $16, %8 \n\t"
"vfmaddps (%3,%0,4) , %%xmm4,%%xmm8,%%xmm4 \n\t"
"vfmaddps 16(%3,%0,4) , %%xmm5,%%xmm8,%%xmm5 \n\t"
"vfmaddps 32(%3,%0,4) , %%xmm6,%%xmm8,%%xmm6 \n\t"
"vfmaddps 48(%3,%0,4) , %%xmm7,%%xmm8,%%xmm7 \n\t"

"addq $16, %0 \n\t"
"vmovups %%xmm4,-64(%3,%0,4) \n\t" // 4 * y
"vmovups %%xmm5,-48(%3,%0,4) \n\t" // 4 * y
"subq $16, %1 \n\t"
"addq $16, %8 \n\t"
"vmovups %%xmm6,-32(%3,%0,4) \n\t" // 4 * y
"vmovups %%xmm7,-16(%3,%0,4) \n\t" // 4 * y

"subq $16, %1 \n\t"
"jnz .L01LOOP%= \n\t"

".L16END%=: \n\t"
@@ -184,12 +192,14 @@ static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLO
"r" (ap[1]), // 5
"r" (ap[2]), // 6
"r" (ap[3]), // 7
"r" (lda4) // 8
"r" (lda4), // 8
"r" (alpha) // 9
: "cc",
"%xmm0", "%xmm1",
"%xmm2", "%xmm3",
"%xmm4", "%xmm5",
"%xmm6", "%xmm7",
"%xmm8", "%xmm9",
"%xmm12", "%xmm13", "%xmm14", "%xmm15",
"memory"
);
@@ -200,9 +210,9 @@ static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLO


#define HAVE_KERNEL_4x4 1
static void sgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y) __attribute__ ((noinline));
static void sgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, FLOAT *alpha) __attribute__ ((noinline));

static void sgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y)
static void sgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, FLOAT *alpha)
{

BLASLONG register i = 0;
@@ -214,9 +224,11 @@ static void sgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y)
"vbroadcastss 8(%2), %%xmm14 \n\t" // x2
"vbroadcastss 12(%2), %%xmm15 \n\t" // x3

"vbroadcastss (%8), %%xmm8 \n\t" // alpha

".align 16 \n\t"
".L01LOOP%=: \n\t"
"vmovups (%3,%0,4), %%xmm4 \n\t" // 4 * y
"vxorps %%xmm4, %%xmm4 , %%xmm4 \n\t"
"vxorps %%xmm5, %%xmm5 , %%xmm5 \n\t"

"vfmaddps %%xmm4, (%4,%0,4), %%xmm12, %%xmm4 \n\t"
@@ -224,8 +236,9 @@ static void sgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y)
"vfmaddps %%xmm4, (%6,%0,4), %%xmm14, %%xmm4 \n\t"
"vfmaddps %%xmm5, (%7,%0,4), %%xmm15, %%xmm5 \n\t"
"vaddps %%xmm4, %%xmm5, %%xmm6 \n\t"
"vaddps %%xmm4, %%xmm5, %%xmm4 \n\t"

"vfmaddps (%3,%0,4) , %%xmm4,%%xmm8,%%xmm6 \n\t"
"vmovups %%xmm6, (%3,%0,4) \n\t" // 4 * y

"addq $4 , %0 \n\t"
@@ -241,10 +254,12 @@ static void sgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y)
"r" (ap[0]), // 4
"r" (ap[1]), // 5
"r" (ap[2]), // 6
"r" (ap[3]) // 7
"r" (ap[3]), // 7
"r" (alpha) // 8
: "cc",
"%xmm4", "%xmm5",
"%xmm6", "%xmm7",
"%xmm8", "%xmm9",
"%xmm12", "%xmm13", "%xmm14", "%xmm15",
"memory"
);


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