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myzero_gneb_wrapper.go
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myzero_gneb_wrapper.go
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package cuda
/*
THIS FILE IS AUTO-GENERATED BY CUDA2GO.
EDITING IS FUTILE.
*/
import (
"github.com/kuchkin/mumax3-gneb/cuda/cu"
"github.com/kuchkin/mumax3-gneb/timer"
"sync"
"unsafe"
)
// CUDA handle for myzero kernel
var myzero_code cu.Function
// Stores the arguments for myzero kernel invocation
type myzero_args_t struct {
arg_ax unsafe.Pointer
arg_ay unsafe.Pointer
arg_az unsafe.Pointer
arg_Nx int
arg_Ny int
arg_Nz int
argptr [6]unsafe.Pointer
sync.Mutex
}
// Stores the arguments for myzero kernel invocation
var myzero_args myzero_args_t
func init() {
// CUDA driver kernel call wants pointers to arguments, set them up once.
myzero_args.argptr[0] = unsafe.Pointer(&myzero_args.arg_ax)
myzero_args.argptr[1] = unsafe.Pointer(&myzero_args.arg_ay)
myzero_args.argptr[2] = unsafe.Pointer(&myzero_args.arg_az)
myzero_args.argptr[3] = unsafe.Pointer(&myzero_args.arg_Nx)
myzero_args.argptr[4] = unsafe.Pointer(&myzero_args.arg_Ny)
myzero_args.argptr[5] = unsafe.Pointer(&myzero_args.arg_Nz)
}
// Wrapper for myzero CUDA kernel, asynchronous.
func k_myzero_async(ax unsafe.Pointer, ay unsafe.Pointer, az unsafe.Pointer, Nx int, Ny int, Nz int, cfg *config) {
if Synchronous { // debug
Sync()
timer.Start("myzero")
}
myzero_args.Lock()
defer myzero_args.Unlock()
if myzero_code == 0 {
myzero_code = fatbinLoad(myzero_map, "myzero")
}
myzero_args.arg_ax = ax
myzero_args.arg_ay = ay
myzero_args.arg_az = az
myzero_args.arg_Nx = Nx
myzero_args.arg_Ny = Ny
myzero_args.arg_Nz = Nz
args := myzero_args.argptr[:]
cu.LaunchKernel(myzero_code, cfg.Grid.X, cfg.Grid.Y, cfg.Grid.Z, cfg.Block.X, cfg.Block.Y, cfg.Block.Z, 0, stream0, args)
if Synchronous { // debug
Sync()
timer.Stop("myzero")
}
}
// maps compute capability on PTX code for myzero kernel.
var myzero_map = map[int]string{0: "",
50: myzero_ptx_50}
// myzero PTX code for various compute capabilities.
const (
myzero_ptx_50 = `
.version 7.5
.target sm_50
.address_size 64
// .globl myzero
.visible .entry myzero(
.param .u64 myzero_param_0,
.param .u64 myzero_param_1,
.param .u64 myzero_param_2,
.param .u32 myzero_param_3,
.param .u32 myzero_param_4,
.param .u32 myzero_param_5
)
{
.reg .pred %p<3>;
.reg .b32 %r<20>;
.reg .b64 %rd<11>;
ld.param.u64 %rd1, [myzero_param_0];
ld.param.u64 %rd2, [myzero_param_1];
ld.param.u64 %rd3, [myzero_param_2];
ld.param.u32 %r3, [myzero_param_3];
ld.param.u32 %r4, [myzero_param_4];
ld.param.u32 %r5, [myzero_param_5];
mov.u32 %r6, %nctaid.x;
mov.u32 %r7, %ctaid.y;
mov.u32 %r8, %ctaid.x;
mad.lo.s32 %r9, %r7, %r6, %r8;
mov.u32 %r10, %ntid.x;
mov.u32 %r11, %tid.x;
mad.lo.s32 %r1, %r9, %r10, %r11;
mul.lo.s32 %r2, %r4, %r3;
mul.lo.s32 %r12, %r2, %r5;
setp.ge.s32 %p1, %r1, %r12;
@%p1 bra $L__BB0_3;
div.s32 %r13, %r1, %r2;
mul.hi.s32 %r14, %r13, 1431655766;
shr.u32 %r15, %r14, 31;
add.s32 %r16, %r14, %r15;
mul.lo.s32 %r17, %r16, 3;
sub.s32 %r18, %r13, %r17;
setp.eq.s32 %p2, %r18, 0;
@%p2 bra $L__BB0_3;
cvta.to.global.u64 %rd4, %rd1;
mul.wide.s32 %rd5, %r1, 4;
add.s64 %rd6, %rd4, %rd5;
mov.u32 %r19, 0;
st.global.u32 [%rd6], %r19;
cvta.to.global.u64 %rd7, %rd2;
add.s64 %rd8, %rd7, %rd5;
st.global.u32 [%rd8], %r19;
cvta.to.global.u64 %rd9, %rd3;
add.s64 %rd10, %rd9, %rd5;
st.global.u32 [%rd10], %r19;
$L__BB0_3:
ret;
}
`
)