misc/subcoding
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Thread safety for status updates, periodically minify

Browse Source
This commit is contained in:
Ian Gulliver
2021-11-22 22:19:38 -08:00
parent 44c6a26f9d
commit 352e1b90be
6 changed files with 59 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
grow/definition.go
View File

@@ -48,7 +48,7 @@ func (def *Definition) Grow(statusChan chan<- Status) (*vm.Program, error) {
for {
status.Attempts++
Mutate(prog)
Mutate(def, prog)
score, err := def.score(prog)
if err != nil {
@@ -58,7 +58,7 @@ func (def *Definition) Grow(statusChan chan<- Status) (*vm.Program, error) {
if score > status.BestScore {
status.BestScore = score
status.BestProgram = prog
status.BestProgram = prog.Copy()
if statusChan != nil {
statusChan <- status
@@ -73,6 +73,7 @@ func (def *Definition) Grow(statusChan chan<- Status) (*vm.Program, error) {
return nil, err
}
status.BestProgram = prog.Copy()
if statusChan != nil {
statusChan <- status
@@ -142,6 +143,7 @@ func (def *Definition) minifyFunction(prog *vm.Program, f int) error {
for i := 0; i < len(prog.Functions[f].Instructions); i++ {
origInstructions := prog.Functions[f].Instructions
tmp := make([]*vm.Instruction, len(prog.Functions[f].Instructions))
copy(tmp, prog.Functions[f].Instructions)
prog.Functions[f].Instructions = append(tmp[:i], tmp[i+1:]...)

10
grow/mutate.go
View File

@@ -8,8 +8,14 @@ import "github.com/firestuff/subcoding/vm"
const instructionsPerFunctionMean = 15
const instrucitonsPerFunctionStdDev = 10
func Mutate(prog *vm.Program) {
target := int(rand.NormFloat64()*instrucitonsPerFunctionStdDev+instructionsPerFunctionMean)
const minifyPeriodMean = 10000
func Mutate(def *Definition, prog *vm.Program) {
if rand.Intn(minifyPeriodMean) == 0 {
def.minifyProgram(prog) // ignore error
}
target := int(rand.NormFloat64()*instrucitonsPerFunctionStdDev + instructionsPerFunctionMean)
if len(prog.Functions[0].Instructions) < target {
addInstruction(prog, prog.Functions[0])