diff --git a/deps/SZ/sz/include/ByteToolkit.h b/deps/SZ/sz/include/ByteToolkit.h
index 898c90610a7a5ef51fa8721010446224b267e996..d35fbcf809bcda12dd36e7fc68c59bd062ee9680 100644
--- a/deps/SZ/sz/include/ByteToolkit.h
+++ b/deps/SZ/sz/include/ByteToolkit.h
@@ -26,8 +26,7 @@ short getExponent_float(float value);
 short getPrecisionReqLength_float(float precision);
 short getExponent_double(double value);
 short getPrecisionReqLength_double(double precision);
-unsigned char numberOfLeadingZeros_Int(int i);
-unsigned char numberOfLeadingZeros_Long(long i);
+
 float bytesToFloat(unsigned char* bytes);
 void floatToBytes(unsigned char *b, float num);
 double bytesToDouble(unsigned char* bytes);
diff --git a/deps/SZ/sz/include/dictionary.h b/deps/SZ/sz/include/dictionary.h
index 0cf326ade2751b2e759bdaac7d8ac72b5eefcabf..ba5bf2f349cebde275c3bdb77a4c9d2722675e70 100644
--- a/deps/SZ/sz/include/dictionary.h
+++ b/deps/SZ/sz/include/dictionary.h
@@ -21,7 +21,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 
 /*---------------------------------------------------------------------------
                                 New types
diff --git a/deps/SZ/sz/include/sz.h b/deps/SZ/sz/include/sz.h
index d3ffdbf3668b7c282d8f0cf8c22d40d351a3b5a3..9f06c9c5538ce91df5949f97eae36df15c26ad1f 100644
--- a/deps/SZ/sz/include/sz.h
+++ b/deps/SZ/sz/include/sz.h
@@ -12,7 +12,6 @@
 
 #include <stdio.h>
 #include <stdint.h>
-#include <sys/time.h>      /* For gettimeofday(), in microseconds */
 #include <time.h>          /* For time(), in seconds */
 #include "pub.h"
 #include "CompressElement.h"
diff --git a/deps/SZ/sz/src/conf.c b/deps/SZ/sz/src/conf.c
index 732cf58d6d3246740b845025d2005a13620cd046..6501f728a17f40121771cc3c2b8fc1ade3108e01 100644
--- a/deps/SZ/sz/src/conf.c
+++ b/deps/SZ/sz/src/conf.c
@@ -138,7 +138,7 @@ int SZ_ReadConf(const char* sz_cfgFile) {
     
     
 	// default option
-    if(sz_cfgFile == NULL || access(sz_cfgFile, F_OK) != 0)
+    if(sz_cfgFile == NULL)
     {
 		dataEndianType = LITTLE_ENDIAN_DATA;
 		setDefaulParams(exe_params, confparams_cpr);
@@ -146,12 +146,6 @@ int SZ_ReadConf(const char* sz_cfgFile) {
 		return SZ_SUCCESS;
 	}
     
-    if (access(sz_cfgFile, F_OK) != 0)
-    {
-        printf("[SZ] Configuration file NOT accessible.\n");
-        return SZ_FAILED;
-    }
-    
     //printf("[SZ] Reading SZ configuration file (%s) ...\n", sz_cfgFile);    
     ini = iniparser_load(sz_cfgFile);
     if (ini == NULL)
diff --git a/deps/SZ/sz/src/dataCompression.c b/deps/SZ/sz/src/dataCompression.c
index 64d89e1e5cbc8c86adecb206c6e8f4ea089e419a..3c32878bb4b3bb9274fc8c75daa02e8332a3a5a4 100644
--- a/deps/SZ/sz/src/dataCompression.c
+++ b/deps/SZ/sz/src/dataCompression.c
@@ -10,7 +10,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 #include "sz.h"
 #include "DynamicByteArray.h"
 #include "DynamicIntArray.h"
diff --git a/deps/SZ/sz/src/dictionary.c b/deps/SZ/sz/src/dictionary.c
index 3f0f5cfa63a862fa515e9e2d21674ad61b7c2f6f..242dea2e21449ca0e186ff1c48d33c2b6e77964b 100644
--- a/deps/SZ/sz/src/dictionary.c
+++ b/deps/SZ/sz/src/dictionary.c
@@ -18,7 +18,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 
 /** Maximum value size for integers and doubles. */
 #define MAXVALSZ    1024
diff --git a/deps/SZ/sz/src/sz.c b/deps/SZ/sz/src/sz.c
index 92fd7c27cf79c6608b035cde702fad6bfac1c48d..dcec9670eaf065fe4397665f2e5edeeef6662541 100644
--- a/deps/SZ/sz/src/sz.c
+++ b/deps/SZ/sz/src/sz.c
@@ -11,7 +11,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 #include "sz.h"
 #include "CompressElement.h"
 #include "DynamicByteArray.h"
@@ -21,6 +20,7 @@
 #include "conf.h"
 #include "utility.h"
 
+
 //#include "CurveFillingCompressStorage.h"
 
 unsigned char versionNumber = DATA_FROMAT_VER1;
@@ -170,14 +170,27 @@ void modulePath(char *buf, int size)
     pos[1]=0;
 }
 
+#ifdef WINDOWS
+int gettimeofday(struct timeval *tv, struct timezone *tz) {
+  time_t t;
+  t = time(NULL);
+  SYSTEMTIME st;
+  GetLocalTime(&st);
+
+  tv->tv_sec = (long)t;
+  tv->tv_usec = st.wMilliseconds * 1000;
+
+  return 0;
+}
+#else
+#include <sys/time.h>
+#endif
 
 struct timeval startTime;
 struct timeval endTime;  /* Start and end times */
 struct timeval costStart; /*only used for recording the cost*/
 double totalCost = 0;
 
-
-
 void cost_start()
 {
 	totalCost = 0;
@@ -201,3 +214,4 @@ void show_rate(int in_len, int out_len)
   float rate=100*(float)out_len/(float)in_len;
   printf(" in_len=%d out_len=%d compress rate=%.4f%%\n", in_len, out_len, rate);
 }
+
diff --git a/deps/SZ/sz/src/sz_double.c b/deps/SZ/sz/src/sz_double.c
index b24f2cb9c1ad9ace8fdcc6ef5d959e21bca19893..e04c6f020505de1fa3063d59ec0c8a8a36ee142b 100644
--- a/deps/SZ/sz/src/sz_double.c
+++ b/deps/SZ/sz/src/sz_double.c
@@ -11,7 +11,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 #include <math.h>
 #include "sz.h"
 #include "CompressElement.h"
diff --git a/deps/SZ/sz/src/sz_float.c b/deps/SZ/sz/src/sz_float.c
index ef2fd8d504d853c50e21771ce9b651e195b6077a..466e4ee0021b6f0a4efee2783395b9cd0bbc2187 100644
--- a/deps/SZ/sz/src/sz_float.c
+++ b/deps/SZ/sz/src/sz_float.c
@@ -12,7 +12,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
 #include <math.h>
 #include "sz.h"
 #include "CompressElement.h"