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code_gen_cpu.py
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code_gen_cpu.py
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# this program basically does a constexpr and generates cuda code
import textwrap
import numpy as np
from code_fragments import *
from utils import *
FUNC_NAME = "spmm"
EPI = "NONE"
def emit_load_block(index, currloadreg):
if X86:
if AVX512:
LOAD_CACHE = """
RC = _mm512_load_ps(&BC[IDX + C_offset + lane]);
//RC = _mm256_load_ps(&BC[(C_offset + lane) * B_dim + IDX]);
"""
LOAD_CACHE_ASM = """vmovups IDX(%r8,%r11,4), %zmmNUM;
"""
else:
LOAD_CACHE = """
RC = _mm256_load_ps(&BC[IDX + C_offset + lane]);
//RC = _mm256_load_ps(&BC[(C_offset + lane) * B_dim + IDX]);
"""
LOAD_CACHE_ASM = """vmovups IDX(%r8,%r11,4), %ymmNUM;
"""
elif ARM:
LOAD_CACHE = """
RC = vld1q_f32(&BC[IDX + C_offset + lane]);
"""
new_block = LOAD_CACHE.replace("IDX",str(index))
new_block_asm = LOAD_CACHE_ASM.replace("IDX",str(index * 4)).replace("NUM",str(currloadreg))
#new_block = LOAD_CACHE.replace("IDX",str(B_idx * 8))
return new_block, new_block_asm
def emit_compute_block(Ny_idx,val,currloadreg, virg=False):
global off
if X86:
if AVX512:
LOAD_WEIGHT="""
val = _mm512_broadcast_ss(AB_val + OFF);
"""
MAIN_PROGRAM ="""
//val = _mm256_set1_ps(VAL);
ACC[IDX_1] = _mm512_fmadd_ps(RC, val, ACC[IDX_1]);
"""
LOAD_WEIGHT_ASM = """vbroadcastss OFF(%rcx), %zmm31;
"""
MAIN_PROGRAM_ASM="""vfmadd231ps %zmmNUM, %zmm31, %zmmIDX_1;
"""
else:
LOAD_WEIGHT = """
val = _mm256_broadcast_ss(AB_val + OFF);
"""
MAIN_PROGRAM ="""
ACC[IDX_1] = _mm256_fmadd_ps(RC, val, ACC[IDX_1]);
"""
LOAD_WEIGHT_ASM = """vbroadcastss OFF(%rcx), %ymm15;
"""
# LOAD_WEIGHT_ASM = """mov $VAL, %r12d;
# movd %r12d, %xmm0;
# vbroadcastss %xmm0, %ymm15;
# """
MAIN_PROGRAM_ASM="""vfmadd231ps %ymmNUM, %ymm15, %ymmIDX_1;
"""
MAIN_PROGRAM_ASM_SUB="""vsubps %ymmNUM, %ymmIDX_1, %ymmIDX_1;
"""
MAIN_PROGRAM_ASM_ADD="""vaddps %ymmNUM, %ymmIDX_1, %ymmIDX_1;
"""
# MAIN_PROGRAM_ASM_SUB="""vpsubp %ymmNUM, %ymmIDX_1, %ymmIDX_1;
# """
# MAIN_PROGRAM_ASM_ADD="""vpaddb %ymmNUM, %ymmIDX_1, %ymmIDX_1;
# """
MAIN_PROGRAM_ASM_VIRG="""vbroadcastss OFF(%rcx), %ymm15;
vmul231ps %ymmNUM, %ymm15, %ymmIDX_1;
"""
elif ARM:
MAIN_PROGRAM ="""
val = vdupq_n_f32(VAL);
ACC[IDX_1] = vmlaq_f32(ACC[IDX_1], RC, val);
"""
if val != 1 and val != -1:
new_block = LOAD_WEIGHT.replace("OFF",str(off ))
new_block_asm = LOAD_WEIGHT_ASM.replace("OFF",str(off * 4 )).replace("VAL","0x" + str(float_to_hex(val)[2:]))
for i in range(CT):
new_block += MAIN_PROGRAM.replace("IDX_1",str(Ny_idx+ i * AT))
new_block_asm += MAIN_PROGRAM_ASM.replace("IDX_1",str(Ny_idx +i * AT)).replace("NUM",str(currloadreg - i))
elif val == 1:
new_block = LOAD_WEIGHT.replace("OFF",str(off ))
new_block_asm = ""
for i in range(CT):
new_block += MAIN_PROGRAM.replace("IDX_1",str(Ny_idx+ i * AT))
new_block_asm += MAIN_PROGRAM_ASM_ADD.replace("IDX_1",str(Ny_idx +i * AT)).replace("NUM",str(currloadreg - i))
elif val == -1:
new_block = LOAD_WEIGHT.replace("OFF",str(off ))
new_block_asm = ""
for i in range(CT):
new_block += MAIN_PROGRAM.replace("IDX_1",str(Ny_idx+ i * AT))
new_block_asm += MAIN_PROGRAM_ASM_SUB.replace("IDX_1",str(Ny_idx +i * AT)).replace("NUM",str(currloadreg - i))
global AB_vals
AB_vals.append(val)
global A_idx
A_idx.append(Ny_idx)
off += 1
return new_block, new_block_asm
def ny_to_a(ny_idx,groupId,blockId, A_dim = None, A_offset = None):
if A_offset is None:
A_offset = blockId * (AT)
return A_offset + ny_idx
def generate_from_B(Ny_indices, B_indices,BA,block,NY,BB_offset,GY=None, A_offset=None):
program = ""
asm = ""
assert GY == 1
for group in range(GY):
#program += GROUP_CONTROL_START.replace("GROUP",str(group)) + "\n"
next_tile_start = 0
old_b_idx = -1
if AVX512:
asm += """
..B1.NUM1:
xorl %r10d, %r10d;
..B1.NUM2:
imul $16, %r10d, %r11d;
add %r9d, %r11d;
movslq %r11d, %r11;
add $CT, %r10d;
""".replace("NUM1",str(BB_offset + block*2+2)).replace("NUM2",str(BB_offset + block * 2 + 3)).replace("STRIDE",str(8)).replace("CT",str(CT))
else:
asm += """
..B1.NUM1:
xorl %r10d, %r10d;
..B1.NUM2:
lea (%r9,%r10,8), %r11d;
movslq %r11d, %r11;
add $CT, %r10d;
""".replace("NUM1",str(BB_offset + block*2+2)).replace("NUM2",str(BB_offset + block * 2 + 3)).replace("CT",str(CT))
#print(A_offset)
if bias is not None:
for i in range(NY):
for j in range(CT):
if BB_offset > 0:
asm += "\t\tvmovups " + str(mapping[A_offset + i] * C_dim * 4 + j * VEC * 4) + "(%rdx,%r11,4)" + (",%zmm" if AVX512 else ",%ymm") + str(i + j * AT) + ";\n"
else:
asm += "\tvbroadcastss " + str(mapping[A_offset+i] * 4) + ("(%rsi), %zmm" if AVX512 else "(%rsi), %ymm") + str(i + AT * j) + ";\n"
else:
for i in range(NY):
for j in range(CT):
if BB_offset > 0:
asm += "\t\tvmovups " + str(mapping[A_offset + i] * C_dim * 4 + j * VEC * 4) + "(%rdx,%r11,4)" + (",%zmm" if AVX512 else ",%ymm") + str(i + j * AT) + ";\n"
else:
asm += "\tvxorps " + ("%zmm" if AVX512 else "%ymm") + str(i + AT * j) + "," + \
("%zmm" if AVX512 else "%ymm") + str(i + AT * j) + "," + ("%zmm" if AVX512 else "%ymm") + str(i + AT * j) + ";\n"
done = set()
loads = ""
computes = ""
if AVX512:
TOK = 24
else:
TOK = 13
currloadreg = TOK
for ny_idx, b_idx in zip(Ny_indices[group],B_indices[group]):
if IN_FORMAT == "NHWC":
if old_b_idx < next_tile_start and b_idx >= next_tile_start:
smem_block = emit_load_smem_block(min(TSB,B_dim - next_tile_start),next_tile_start // TSB)
program += textwrap.indent(smem_block,"\t")
next_tile_start += TSB
if b_idx != old_b_idx:
if IN_FORMAT == "NCHW":
currloadreg = TOK #(currloadreg - TOK + 1) % 6 + TOK
if currloadreg == TOK:
asm += loads
asm += computes
loads = ""
computes = ""
for i in range(CT):
load_block_cuda, load_block_asm = emit_load_block(b_idx * C_dim + i * VEC, currloadreg - i)
loads += textwrap.indent(load_block_asm,"\t")
program += textwrap.indent(load_block_cuda,"\t")
else:
load_block_cuda, load_block_asm = emit_load_block(b_idx,next_tile_start - TSB)
old_b_idx = b_idx
a_idx = ny_to_a(ny_idx,group,block,A_dim = A_dim, A_offset=A_offset)
value = BA[b_idx,a_idx]
global B_idx
B_idx.append(b_idx)
compute_block_cuda, compute_block_asm = emit_compute_block(ny_idx , value, currloadreg , virg = ny_idx not in done)
computes += textwrap.indent(compute_block_asm, "\t")
program += textwrap.indent(compute_block_cuda, "\t")
done.add(ny_idx)
asm += loads
asm += computes
#print(block,group)
#program += GROUP_CONTROL_END + "\n"
global AB_block_offs
AB_block_offs.append(len(AB_vals))
return program, asm, done
def get_idx_balanced(block,BA,A_offset,block_NY,B_bounds = None, GY=None):
BA = BA[B_bounds[0]:B_bounds[1]]
Ny_indices = [[] for i in range(GY)]
B_indices = [[] for i in range(GY)]
nnz = np.sum(np.abs(BA[:,A_offset:A_offset + block_NY]) > EPS )
nnz_per_group = nnz // GY
curr_group = 0
curr_nnz = 0
for B_idx in range(B_dim // B_blocks):
for ny in range(block_NY):
assert curr_group < GY
A_idx = ny_to_a(ny,curr_group,block,A_dim = A_dim, A_offset=A_offset)
if np.abs(BA[B_idx,A_idx]) > EPS:
B_indices[curr_group].append(B_idx + B_bounds[0])
Ny_indices[curr_group].append(ny)
curr_nnz += 1
if curr_nnz > nnz_per_group:
curr_group += 1
curr_nnz = 0
return Ny_indices, B_indices
def no_load_balance(BA,A_blocks):
#assert A_dim % A_blocks == 0
interval = AT
bounds = [interval * i for i in range(A_blocks)] + [A_dim]
return bounds , interval
def load_balancer2(BA):
total_nnz = (np.abs(BA) > EPS).sum()
nnz_per_block = total_nnz / A_blocks
sums = np.sum(np.abs(BA) > EPS, axis = 0)
cs = np.cumsum(sums)
bounds = [np.argmax(cs > nnz_per_block * i) for i in range(A_blocks)]
bounds = bounds + [A_dim]
nnzs = np.diff(bounds)
NY = np.max(nnzs)
return bounds, NY
# name is the name of the numpy file
def gencode(BA,C_dim,A_blocks,C_blocks,name=None):
program = ""
asm_program = """
# -- Begin _FUNCNAME
.text
# mark_begin;
.align 16,0x90
.globl _FUNCNAME
# --- mm(void *)
_FUNCNAME:
# parameter 1: %rdi
..B1.1: # Preds ..B1.0
# Execution count [9.00e-01]
.cfi_startproc
..___tag_value__FUNCNAME.1:
..L2:
#45.1
pushq %rbp #45.1
.cfi_def_cfa_offset 16
movq %rsp, %rbp #45.1
.cfi_def_cfa 6, 16
.cfi_offset 6, -16
andq $-32, %rsp #45.1
subq $96, %rsp #45.1
movq (%rdi), %rcx #47.38
movq 8(%rdi), %rsi #48.46
movq 16(%rdi), %r8 #49.41
movq 24(%rdi), %rdx #50.22
movl 36(%rdi), %eax
movl 32(%rdi), %edi #51.21
vxorps ZERO, ZERO, ZERO #59.19
decl %eax
decl %edi
imul $TSZ, %eax, %r9d
""".replace("TSZ",str(TSZ)).replace("ZERO","%zmm30" if AVX512 else "%ymm14").replace("FUNCNAME",FUNC_NAME)
#assert A_dim % A_blocks == 0
#assert C_dim % C_blocks == 0
B_dim = BA.shape[0]
# if IN_FORMAT == "NCHW" and OUT_FORMAT == "NCHW":
# bounds, NY = load_balancer2(BA)
# else:
bounds, NY = no_load_balance(BA,A_blocks)
program += START_NONFUSED.replace("OUTPUT_FORMAT",OUT_FORMAT).replace("INPUT_FORMAT",IN_FORMAT).replace("Ny",str(NY)).replace("GY",str(GY)).replace("A_dim",str(A_dim)).replace(
"C_dim",str(C_dim)).replace("B_dim",str(B_dim)).replace("A_BLOCKS",str(A_blocks)).replace("C_BLOCKS",str(C_blocks)).replace("X86_DEF",str(int(X86))).replace("ARM_DEF",str(int(ARM))) + "\n"
assert B_dim % B_blocks == 0
block_size = B_dim // B_blocks
for b_block in range(B_blocks):
bb_offset = b_block * A_blocks * 2
for block in range(A_blocks):
A_offset = bounds[block]
block_NY = bounds[block+1] - A_offset
program += BLOCK_CONTROL_START.replace("BLOCK", str(block)).replace("Ny",str(block_NY)) + "\n"
Ny_indices, B_indices = get_idx_balanced(block,BA,A_offset,block_NY,B_bounds = [b_block * block_size, (b_block + 1) * block_size],GY=GY)
#import pdb;pdb.set_trace()
ccode, asm, done = generate_from_B(Ny_indices,B_indices,BA,block,block_NY,bb_offset, GY=GY,A_offset=A_offset)
#ccode = generate_c_stem(block_NY)
program += textwrap.indent(ccode,"\t") + "\n"
asm_program += textwrap.indent(asm,"\t") + "\n"
if OUT_FORMAT == "NCHW":
if FUSE_END:
if GY > 1:
print("End fusion strategy not valid.")
for i in range(block_NY):
program += BLOCK_END_REDUCTION.replace("OFFSET",str(mapping[A_offset + i] * C_dim)).replace("IDX",str(i)).replace("BIAS",str(A_offset+i))
if not NO_RELU:
for j in range(CT):
asm_program += "\t\tvmaxps %ymm" + str(i + j * AT) + (", %zmm30," if AVX512 else ", %ymm14,") + "%ymm" + str(i + j * AT) + ";\n"
for j in range(CT):
# vcmpltps %ymm0, %ymm14, %ymm0
# vmovups msg(%rip), %ymm14
# vminps %ymm14, %ymm0, %ymm0
asm_program += "\t\tvmovups %ymm" + str(i + j * AT) + ", " + str(mapping[A_offset + i] * C_dim * 4 + j * VEC * 4) + "(%rdx,%r11,4);\n"
asm_program += """
cmpl $END, %r10d;
jb ..B1.NUM;
""".replace("NUM",str(bb_offset + block * 2 + 3)).replace("END",str(TSZ // VEC))
program += "\t}"
else:
if EPI == "LT":
for i in range(block_NY):
for j in range(CT):
asm_program += "\t\tvbroadcastss " + str(mapping[A_offset+i] * 4) + "(%rsi), " + ("%zmm30;" if AVX512 else " %ymm14;") + "\n"
asm_program += "\t\tvcmpltps %ymm14, %ymm" + str(i + j * AT) + ",%ymm" + str(i + j * AT) + ";\n"
asm_program += "\t\tvmovups msg(%rip), %ymm14;\n"
asm_program += "\t\tvminps %ymm14, %ymm" +str(i + j * AT) + ", %ymm" + str(i + j * AT) + ";\n"
asm_program += "\t\tvmovups %ymm" + str(i + j * AT) + ", " + str(mapping[A_offset + i] * C_dim * 4 + j * VEC * 4) + "(%rdx,%r11,4);\n"
elif EPI == "EQ":
for i in range(block_NY):
for j in range(CT):
asm_program += "\t\tvbroadcastss " + str(mapping[A_offset+i] * 4) + "(%rsi), " + ("%zmm30;" if AVX512 else " %ymm14;") + "\n"
asm_program += "\t\tvcmpeqps %ymm14, %ymm" + str(i + j * AT) + ",%ymm" + str(i + j * AT) + ";\n"
asm_program += "\t\tvmovups msg(%rip), %ymm14;\n"
asm_program += "\t\tvminps %ymm14, %ymm" +str(i + j * AT) + ", %ymm" + str(i + j * AT) + ";\n"
asm_program += "\t\tvmovups %ymm" + str(i + j * AT) + ", " + str(mapping[A_offset + i] * C_dim * 4 + j * VEC * 4) + "(%rdx,%r11,4);\n"
elif EPI == "NONE":
for i in range(block_NY):
for j in range(CT):
asm_program += "\t\tvmovups %ymm" + str(i + j * AT) + ", " + str(mapping[A_offset + i] * C_dim * 4 + j * VEC * 4) + "(%rdx,%r11,4);\n"
asm_program += """
cmpl $END, %r10d;
jb ..B1.NUM;
""".replace("NUM",str(bb_offset + block * 2 + 3)).replace("END",str(TSZ // VEC))
else:
program += BLOCK_END_NHWC.replace("A_offset",str(A_offset)).replace("Ny",str(block_NY)).replace("A_BLOCKS",str(A_blocks)).replace(
"C_BLOCKS", str(C_blocks)).replace("A_dim",str(A_dim)).replace("C_dim",str(C_dim)).replace("B_dim",str(B_dim)) + "\n"
# program += BLOCK_CONTROL_END
program += END_NONFUSED.replace("AB_sparse_tidy.npy",name)
open(outfile,"w").write(program.replace("B_dim",str(B_dim)))
asm_program += """
..B1.NUM1: # Preds ..B1.17
# Execution count [2.80e+01]
decl %eax #44.37
subl $TSZ, %r9d #44.37
cmpl %eax, %edi #44.33
jl ..B1.2 # Prob 96% #44.33
# LOE rcx rbx rbp rsi rdi r12 r13 r14 r15 eax dl ymm15
..B1.NUM2: # Preds ..B1.18
# Execution count [1.00e+00]
vzeroupper #2398.1
movq %rbp, %rsp
popq %rbp
#call pthread_exit@PLT #2416.1
ret
..___tag_value__FUNCNAME.13:
.align 16,0x90
# LOE
.cfi_endproc
# mark_end;
.type _FUNCNAME,@function
.size _FUNCNAME,.-_FUNCNAME
..LN_FUNCNAME.0:
.section .rodata
.balign 32
msg:
.long 0x3f800000,0x3f800000,0x3f800000,0x3f800000,0x3f800000,0x3f800000,0x3f800000,0x3f800000
# -- End _FUNCNAME
""".replace("FUNCNAME",FUNC_NAME).replace("TSZ",str(TSZ)).replace("CBLOCKS",str(C_blocks)).replace("NUM1",str(B_blocks * A_blocks *2 + 2)).replace("NUM2",str(B_blocks * A_blocks * 2 + 3))
if AVX512:
asm_program = asm_program.replace("ymm","zmm")
open(outfile_asm,"w").write(asm_program)
if __name__ == "__main__":
import argparse
parser = argparse.ArgumentParser(description='CodeGen V1')
parser.add_argument('--A_dim', type=int, default=12)
parser.add_argument('--B_dim', type=int, default=12)
parser.add_argument('--C_dim', type=int, default=12)
parser.add_argument('--AT', type=int, default=12)
parser.add_argument('--C_blocks', type=int, default=12)
parser.add_argument('--CT',type=int, default=1)
parser.add_argument('--B_blocks',type=int,default=1)
parser.add_argument('--Gy', type=int, default=12)
parser.add_argument('--infile', default=None, type=str)
parser.add_argument('--infile_bias', default=None, type=str)
parser.add_argument('--outfile', default=None, type=str)
parser.add_argument('--outfile_asm', default= None, type = str)
parser.add_argument('--in_format', default="NCHW",type=str)
parser.add_argument('--out_format', default="NCHW",type=str)
parser.add_argument('--Tsb',type=float,default=1)
parser.add_argument('--fuse',default=False,action='store_true')
parser.add_argument('--x86',default=False,action='store_true')
parser.add_argument('--arm',default=False,action='store_true')
parser.add_argument('--avx512',default=False,action='store_true')
parser.add_argument('--no_relu',default=False,action='store_true')
parser.add_argument('--no_row_skip',default=False,action='store_true')
args = parser.parse_args()
GY = args.Gy
FUSE_END = args.fuse
NO_RELU = args.no_relu
TSB_MULT = args.Tsb
A_dim = args.A_dim
B_dim = args.B_dim
C_dim = args.C_dim
AT = args.AT
C_blocks = args.C_blocks
AVX512 = False
if args.avx512:
AVX512 = True
input_file = args.infile
outfile = args.outfile
outfile_asm = args.outfile_asm
#assert C_dim % C_blocks == 0
TSZ = C_dim // C_blocks if C_dim % C_blocks == 0 else C_dim // C_blocks + 1
X86 = args.x86
ARM = args.arm
NRS = args.no_row_skip
CT = args.CT
B_blocks = args.B_blocks
if AVX512:
VEC = 16
else:
VEC = 8
IN_FORMAT = args.in_format
OUT_FORMAT = args.out_format
input_file_bias = args.infile_bias
if input_file_bias:
bias = np.load(input_file_bias)
else:
bias = None
#global AB_vals
AB_vals = []
A_idx = []
B_idx = []
AB_block_offs = [0]
#global off
off = 0
assert not (X86 and ARM)
if X86:
print("Generating X86 vector intrinsics")
elif ARM:
print("Generating Arm intrinsics")
else:
assert False
if IN_FORMAT == "NHWC" or OUT_FORMAT == "NHWC":
assert False
BA = np.load(input_file)
print(BA.shape)
BA = BA.squeeze()
"""
We are going to redo BA here to remove some empty rows
"""
if NRS:
A_dim = BA.shape[1]
mapping = {i:i for i in range(A_dim)}
else:
nnz_cols = np.unique(np.where(BA)[1])
mapping = {i : nnz_cols[i] for i in range(len(nnz_cols))}
#print(mapping)
BA = BA[:,nnz_cols]
A_dim = len(nnz_cols)
if A_dim % AT == 0:
A_blocks = A_dim // AT
else:
A_blocks = A_dim // AT + 1
print("Reduced A dimension " + str(A_dim))
gencode(BA,C_dim,A_blocks,C_blocks,name=input_file)
np.save("AB_vals.npy",np.array(AB_vals))
np.save("AB_block_off.npy",np.array(AB_block_offs).astype(np.int32))
np.save("A_idx.npy",np.array(A_idx).astype(np.int32))
np.save("B_idx.npy",np.array(B_idx).astype(np.int32))
if input_file_bias:
np.save("AB_bias.npy",bias.squeeze())