diff --git a/.gitignore b/.gitignore
index 9f84111..3090a33 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 *.[oa]
 sw_perf
+sw_perf_discrete
 test
 test64
 .*.swp
diff --git a/.vscode/launch.json b/.vscode/launch.json
index 5e68af2..6b50b59 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -14,6 +14,17 @@
                 "all"
             ],
             "cwd": "${workspaceFolder}", // 当前工作路径：当前文件所在的工作空间
+        },
+        {
+            "name": "sw-perf-discrete",
+            "preLaunchTask": "Build",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceRoot}/sw_perf_discrete",
+            "args": [
+                "all"
+            ],
+            "cwd": "${workspaceFolder}", // 当前工作路径：当前文件所在的工作空间
         }
     ]
 }
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 37c830b..5044fac 100644
--- a/Makefile
+++ b/Makefile
@@ -4,6 +4,7 @@ CFLAGS=		-Wall -Wno-unused-function -O2 -mavx2
 DFLAGS=		-DSHOW_PERF
 OBJS=		ksw_normal.o ksw_avx2.o ksw_cuda.o ksw_avx2_u8.o
 PROG=		sw_perf
+PROG2= 		sw_perf_discrete
 INCLUDES=	
 LIBS=
 SUBDIRS=	.
@@ -17,13 +18,16 @@ endif
 .c.o:
 		$(CC) -c $(CFLAGS) $(DFLAGS) $(INCLUDES) $(CPPFLAGS) $< -o $@
 
-all:$(PROG)
+all:$(PROG) $(PROG2)
 
 sw_perf:$(OBJS) main.o
 		$(CC) $(CFLAGS) $(LDFLAGS) $(OBJS) main.o -o $@ -L. $(LIBS)
 
+$(PROG2):$(OBJS) discrete_mem_main.o
+		$(CC) $(CFLAGS) $(LDFLAGS) $(OBJS) main.o -o $@ -L. $(LIBS)
+
 clean:
-		rm -f *.o a.out $(PROG) *~ *.a
+		rm -f *.o a.out $(PROG) $(PROG2) *~ *.a
 
 depend:
 	( LC_ALL=C ; export LC_ALL; makedepend -Y -- $(CFLAGS) $(DFLAGS) $(CPPFLAGS) -- *.c )
diff --git a/main.c b/main.c
index 51ac5e2..5e28fd9 100644
--- a/main.c
+++ b/main.c
@@ -85,12 +85,15 @@ int main(int argc, char *argv[])
     // const char *qf_path = "/public/home/zzh/data/sw/q_s.fa";
     // const char *tf_path = "/public/home/zzh/data/sw/t_s.fa";
     // const char *if_path = "/public/home/zzh/data/sw/i_s.txt";
-    const char *qf_path = "/public/home/zzh/data/sw/q_m.fa";
-    const char *tf_path = "/public/home/zzh/data/sw/t_m.fa";
-    const char *if_path = "/public/home/zzh/data/sw/i_m.txt";
     // const char *qf_path = "/public/home/zzh/data/sw/q_m.fa";
     // const char *tf_path = "/public/home/zzh/data/sw/t_m.fa";
     // const char *if_path = "/public/home/zzh/data/sw/i_m.txt";
+    // const char *qf_path = "/public/home/zzh/data/sw/q_l.fa";
+    // const char *tf_path = "/public/home/zzh/data/sw/t_l.fa";
+    // const char *if_path = "/public/home/zzh/data/sw/i_l.txt";
+    const char *qf_path = "/public/home/zzh/data/sw/query.fa";
+    const char *tf_path = "/public/home/zzh/data/sw/target.fa";
+    const char *if_path = "/public/home/zzh/data/sw/info.txt";
     query_f = fopen(qf_path, "r");
     target_f = fopen(tf_path, "r");
     info_f = fopen(if_path, "r");