DERO AstroBWT CPU miner more optimizations

Author: CaptainDero

astrobwt/astrobwt_optimized.go

@@ -39,21 +39,11 @@ func POW_optimized_v1(inputdata []byte, max_limit int) (outputhash [32]byte, suc
 	/* for i := range data.stage1_result{
 	    data.stage1_result[i] =0
 	}*/
-	for i := range data.stage2 {
-		data.stage2[i] = 0
-	}
-	/*for i := range data.stage2_result{
-	    data.stage2_result[i] =0
-	}*/
 
 	key := sha3.Sum256(inputdata)
-
 	salsa.XORKeyStream(data.stage1[1:stage1_length+1], data.stage1[1:stage1_length+1], &counter, &key)
-
 	sort_indices(stage1_length+1, data.stage1[:], data.stage1_result[:], data)
-
 	key = sha3.Sum256(data.stage1_result[:])
-
 	stage2_length := stage1_length + int(binary.LittleEndian.Uint32(key[:])&0xfffff)
 
     if stage2_length > max_limit {
@@ -69,10 +59,11 @@ func POW_optimized_v1(inputdata []byte, max_limit int) (outputhash [32]byte, suc
 	}
 
 	salsa.XORKeyStream(data.stage2[1:stage2_length+1], data.stage2[1:stage2_length+1], &counter, &key)
-
 	sort_indices(stage2_length+1, data.stage2[:], data.stage2_result[:], data)
-
 	key = sha3.Sum256(data.stage2_result[:stage2_length+1])
+	for i := range data.stage2{
+	    data.stage2[i] =0
+	}
 
 	copy(outputhash[:], key[:])
 	pool.Put(data)
@@ -213,7 +204,7 @@ func sort_indices(N int, input_extra []byte, output []byte, d *Data) {
 		output[i] = input_extra[indices[i]&((1<<21)-1)]
 	}
 
-	// there is an issue above, if the last byte of input is 0x00, initialbytes are wrong
+	// there is an issue above, if the last byte of input is 0x00, initialbytes are wrong, this fix may not be complete
 	if N > 3 && input[N-2] == 0 {
 		backup_byte := output[0]
 		output[0] = 0

cmd/dero-miner/miner.go

@@ -468,6 +468,8 @@ func mineblock() {
 	runtime.LockOSThread()
 	threadaffinity()
 
+    iterations_per_loop := uint32(31.0 * float32(astrobwt.MAX_LENGTH) / float32(max_pow_size)) 
+
 	for {
 		mutex.RLock()
 		myjob := job
@@ -481,7 +483,7 @@ func mineblock() {
 		n, err := hex.Decode(work[:], []byte(myjob.Blockhashing_blob))
 		if err != nil || n != 76 {
 			time.Sleep(time.Second)
-			globals.Logger.Errorf("Blockwork could not decoded successfully (%s) , err:%s n:%d", myjob.Blockhashing_blob, err, n)
+			globals.Logger.Errorf("Blockwork could not decoded successfully (%s) , err:%s n:%d %+v", myjob.Blockhashing_blob, err, n, myjob)
 			continue
 		}
 
@@ -514,7 +516,7 @@ func mineblock() {
 				}
 			}
 		} else {
-			for i := uint32(0); i < 32; i++ {
+			for i := uint32(0); i < iterations_per_loop; i++ {
 				binary.BigEndian.PutUint32(nonce_buf, i)
 				//pow := astrobwt.POW_0alloc(work[:])
 				pow, success := astrobwt.POW_optimized_v1(work[:],max_pow_size)
@@ -550,10 +552,10 @@ func usage(w io.Writer) {
 	//io.WriteString(w, completer.Tree("    "))
 	io.WriteString(w, "\t\033[1mhelp\033[0m\t\tthis help\n")
 	io.WriteString(w, "\t\033[1mstatus\033[0m\t\tShow general information\n")
-	io.WriteString(w, "\t\033[1mbye\033[0m\t\tQuit the daemon\n")
+	io.WriteString(w, "\t\033[1mbye\033[0m\t\tQuit the miner\n")
 	io.WriteString(w, "\t\033[1mversion\033[0m\t\tShow version\n")
-	io.WriteString(w, "\t\033[1mexit\033[0m\t\tQuit the daemon\n")
-	io.WriteString(w, "\t\033[1mquit\033[0m\t\tQuit the daemon\n")
+	io.WriteString(w, "\t\033[1mexit\033[0m\t\tQuit the miner\n")
+	io.WriteString(w, "\t\033[1mquit\033[0m\t\tQuit the miner\n")
 
 }
 

config/version.go

@@ -20,4 +20,4 @@ import "github.com/blang/semver"
 
 // right now it has to be manually changed
 // do we need to include git commitsha??
-var Version = semver.MustParse("2.2.0-1.Atlantis.Astrobwt+05032020")
+var Version = semver.MustParse("2.2.0-4.Atlantis.Astrobwt+05032020")