diff --git a/deps/SZ/CMakeLists.txt b/deps/SZ/CMakeLists.txt
index 06afefda6532310943bcb3e6000f736da013dce6..72c8ef9b84b9eada517deda64827ec39ce52acc6 100644
--- a/deps/SZ/CMakeLists.txt
+++ b/deps/SZ/CMakeLists.txt
@@ -21,7 +21,7 @@ AUX_SOURCE_DIRECTORY(zstd/dictBuilder SRC8)
 # archive
 ADD_LIBRARY(SZ STATIC ${SRC1} ${SRC2} ${SRC3} ${SRC4} ${SRC5} ${SRC6} ${SRC7} ${SRC8})
 
-SET_TARGET_PROPERTIES(SZ PROPERTIES COMPILE_FLAGS -w)
+#SET_TARGET_PROPERTIES(SZ PROPERTIES COMPILE_FLAGS -w)
 
 
 
diff --git a/deps/SZ/sz/include/ByteToolkit.h b/deps/SZ/sz/include/ByteToolkit.h
index e88bf020f56c92c36777e58b199f9f0450e3461b..c6a3dffdbb203d08fa107eddb18dff49df65aeca 100644
--- a/deps/SZ/sz/include/ByteToolkit.h
+++ b/deps/SZ/sz/include/ByteToolkit.h
@@ -45,10 +45,6 @@ unsigned char numberOfLeadingZeros_Int(int i);
 unsigned char numberOfLeadingZeros_Long(long i);
 unsigned char getLeadingNumbers_Int(int v1, int v2);
 unsigned char getLeadingNumbers_Long(long v1, long v2);
-short bytesToShort(unsigned char* bytes);
-void shortToBytes(unsigned char* b, short value);
-int bytesToInt(unsigned char* bytes);
-long bytesToLong(unsigned char* bytes);
 float bytesToFloat(unsigned char* bytes);
 void floatToBytes(unsigned char *b, float num);
 double bytesToDouble(unsigned char* bytes);
diff --git a/deps/SZ/sz/src/ByteToolkit.c b/deps/SZ/sz/src/ByteToolkit.c
index 24041efeab51036d74ab049a9afc72f934cd8c2c..a58eaa2a9f9d7e70b6df360968bd77053777ab87 100644
--- a/deps/SZ/sz/src/ByteToolkit.c
+++ b/deps/SZ/sz/src/ByteToolkit.c
@@ -8,9 +8,11 @@
  */
  
 #include <stdlib.h>
+#include <string.h>
 #include "sz.h" 	
 #include "zlib.h"
 
+
 inline unsigned short bytesToUInt16_bigEndian(unsigned char* bytes)
 {
 	int temp = 0;
@@ -397,37 +399,8 @@ unsigned char getLeadingNumbers_Long(long v1, long v2)
 	return (unsigned char)numberOfLeadingZeros_Long(v);
 }
 
-/**
- * By default, the endian type is OS endian type.
- * */
-short bytesToShort(unsigned char* bytes)
-{
-	lint16 buf;
-	memcpy(buf.byte, bytes, 2);
-	
-	return buf.svalue;
-}
 
-void shortToBytes(unsigned char* b, short value)
-{
-	lint16 buf;
-	buf.svalue = value;
-	memcpy(b, buf.byte, 2);
-}
 
-int bytesToInt(unsigned char* bytes)
-{
-	lfloat buf;
-	memcpy(buf.byte, bytes, 4);
-	return buf.ivalue;
-}
-
-long bytesToLong(unsigned char* bytes)
-{
-	ldouble buf;
-	memcpy(buf.byte, bytes, 8);
-	return buf.lvalue;
-}
 
 //the byte to input is in the big-endian format
 inline float bytesToFloat(unsigned char* bytes)
diff --git a/deps/SZ/sz/src/CompressElement.c b/deps/SZ/sz/src/CompressElement.c
index c941ded46da0e3865c97315ab84563a2fc22600a..2b50f7c79d35eb3bb2552e97cbb113ad03aedcd4 100644
--- a/deps/SZ/sz/src/CompressElement.c
+++ b/deps/SZ/sz/src/CompressElement.c
@@ -13,8 +13,9 @@
 #include <stdlib.h> 
 #include <stdio.h>
 #include <math.h>
-#include <sz.h>
-#include <CompressElement.h>
+#include <string.h>
+#include "sz.h"
+#include "CompressElement.h"
 
 
 inline short computeGroupNum_float(float value)
diff --git a/deps/SZ/sz/src/TightDataPointStorageF.c b/deps/SZ/sz/src/TightDataPointStorageF.c
index 8d65d24cfd746253dbb44a9a230bc82775d68566..6abf345370a07c4984df660aae63cdd7b1f11d08 100644
--- a/deps/SZ/sz/src/TightDataPointStorageF.c
+++ b/deps/SZ/sz/src/TightDataPointStorageF.c
@@ -206,10 +206,7 @@ void convertTDPStoBytes_float(TightDataPointStorageF* tdps, unsigned char* bytes
 	unsigned char exactLengthBytes[8];
 	unsigned char exactMidBytesLength[8];
 	unsigned char realPrecisionBytes[8];
-	
 	unsigned char medianValueBytes[4];
-	
-	unsigned char segment_sizeBytes[8];
 	unsigned char max_quant_intervals_Bytes[4];
 	
 	// 1 version
diff --git a/deps/SZ/sz/src/callZlib.c b/deps/SZ/sz/src/callZlib.c
index 842bd11ac3eb3e99f8751491ef6c2405ee30e4a4..f38d4c9c0824e6ee86e5d1bdb75401e2d67fee63 100644
--- a/deps/SZ/sz/src/callZlib.c
+++ b/deps/SZ/sz/src/callZlib.c
@@ -10,6 +10,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <zlib.h>
 #include <sz.h>
 
@@ -221,7 +222,7 @@ unsigned long zlib_compress5(unsigned char* data, unsigned long dataLength, unsi
 		return ret;
 
 	size_t p_size = 0, av_in = 0;
-    uLong estCmpLen = deflateBound(&strm, dataLength);
+    deflateBound(&strm, dataLength);
    	//*compressBytes = (unsigned char*)malloc(sizeof(unsigned char)*estCmpLen);	 // comment by tickduan no need malloc
 	unsigned char* out = compressBytes; 
 
diff --git a/deps/SZ/sz/src/dataCompression.c b/deps/SZ/sz/src/dataCompression.c
index 237a3315c1b56435154cee3efd9f01946b6919e3..64d89e1e5cbc8c86adecb206c6e8f4ea089e419a 100644
--- a/deps/SZ/sz/src/dataCompression.c
+++ b/deps/SZ/sz/src/dataCompression.c
@@ -207,7 +207,6 @@ inline void compressSingleFloatValue(FloatValueCompressElement *vce, float oriVa
 	if(ignBitCount<0)
 		ignBitCount = 0;
 	
-	int tmp_int = diffVal.ivalue;
 	intToBytes_bigEndian(vce->curBytes, diffVal.ivalue);
 	
 	// truncate diff value tail bit with ignBitCount	
diff --git a/deps/SZ/sz/src/iniparser.c b/deps/SZ/sz/src/iniparser.c
index b076ed1d0f885b419c170eff5924614cd9239350..3d5b8dcda0bcfe53f01e358d5edf40dc1dcab3b9 100644
--- a/deps/SZ/sz/src/iniparser.c
+++ b/deps/SZ/sz/src/iniparser.c
@@ -659,7 +659,7 @@ dictionary * iniparser_load(const char * ininame)
     char line    [ASCIILINESZ+1] ;
     char section [ASCIILINESZ+1] ;
     char key     [ASCIILINESZ+1] ;
-    char tmp     [ASCIILINESZ+1] ;
+    char tmp     [2*ASCIILINESZ+2] ;
     char val     [ASCIILINESZ+1] ;
 
     int  last=0 ;
diff --git a/deps/SZ/sz/src/sz.c b/deps/SZ/sz/src/sz.c
index 442bf8ad55653732874e8fedfd177b957cca81bc..92fd7c27cf79c6608b035cde702fad6bfac1c48d 100644
--- a/deps/SZ/sz/src/sz.c
+++ b/deps/SZ/sz/src/sz.c
@@ -90,14 +90,13 @@ int SZ_Init_Params(sz_params *params)
 size_t SZ_compress_args(int dataType, void *data, size_t r1, unsigned char* outData, sz_params* params)
 {
 	size_t outSize = 0;
-	int status;
 	if(dataType==SZ_FLOAT)
 	{
-		status = SZ_compress_args_float((float *)data, r1, outData,  &outSize, params);		
+		SZ_compress_args_float((float *)data, r1, outData,  &outSize, params);		
 	}
 	else if(dataType==SZ_DOUBLE)
 	{
-		status = SZ_compress_args_double((double *)data, r1, outData,  &outSize, params);
+		SZ_compress_args_double((double *)data, r1, outData,  &outSize, params);
 	}
 	else
 	{
diff --git a/deps/SZ/sz/src/sz_double.c b/deps/SZ/sz/src/sz_double.c
index 1413c9ce306920cb4afd1875a94ad0cd24ec38c0..2a41f529fad7636a3e45b9e005cacee66d8f9d97 100644
--- a/deps/SZ/sz/src/sz_double.c
+++ b/deps/SZ/sz/src/sz_double.c
@@ -22,7 +22,6 @@
 #include "szd_double.h"
 #include "zlib.h"
 #include "utility.h"
-#include "sz_stats.h"
 
 unsigned char* SZ_skip_compress_double(double* data, size_t dataLength, size_t* outSize)
 {
@@ -253,7 +252,6 @@ void SZ_compress_args_double_StoreOriData(double* oriData, size_t dataLength, un
 bool SZ_compress_args_double_NoCkRngeNoGzip_1D(unsigned char* newByteData, double *oriData, 
 size_t dataLength, double realPrecision, size_t *outSize, double valueRangeSize, double medianValue_d)
 {
-	char compressionType = 0;	
 	TightDataPointStorageD* tdps = NULL; 	
 	tdps = SZ_compress_double_1D_MDQ(oriData, dataLength, realPrecision, valueRangeSize, medianValue_d);			
 	
@@ -301,16 +299,12 @@ int SZ_compress_args_double(double *oriData, size_t r1, unsigned char* newByteDa
 	int status = SZ_SUCCESS;
 	size_t dataLength = r1;
 	
-
 	double valueRangeSize = 0, medianValue = 0;
-	
-	bool positive = true;
-	double nearZero = 0.0;
 
 	// check at least elements count  
 	if(dataLength <= MIN_NUM_OF_ELEMENTS)
 	{
-		printf("error, double input elements count=%d less than %d, so need not do compress.\n", dataLength, MIN_NUM_OF_ELEMENTS);
+		printf("error, double input elements count=%ld less than %d, so need not do compress.\n", dataLength, MIN_NUM_OF_ELEMENTS);
 		return SZ_LITTER_ELEMENT;
 	}
 		
diff --git a/deps/SZ/sz/src/sz_float.c b/deps/SZ/sz/src/sz_float.c
index 7ca45335d6ae37bc26d5b606eb7cf37f39ea0963..22ac8377d298e3f60873db598c80765b9f826675 100644
--- a/deps/SZ/sz/src/sz_float.c
+++ b/deps/SZ/sz/src/sz_float.c
@@ -306,14 +306,11 @@ int SZ_compress_args_float(float *oriData, size_t r1, unsigned char* newByteData
 	// check at least elements count  
 	if(dataLength <= MIN_NUM_OF_ELEMENTS)
 	{
-		printf("error, input elements count=%d less than %d, so need not do compress.\n", dataLength, MIN_NUM_OF_ELEMENTS);
+		printf("error, input elements count=%ld less than %d, so need not do compress.\n", dataLength, MIN_NUM_OF_ELEMENTS);
 		return SZ_LITTER_ELEMENT;
 	}
 	
 	float valueRangeSize = 0, medianValue = 0;
-	unsigned char * signs = NULL;
-	bool positive = true;
-	float nearZero = 0.0;
 	float min = 0;
 
 	min = computeRangeSize_float(oriData, dataLength, &valueRangeSize, &medianValue);	
diff --git a/deps/SZ/sz/src/szd_double.c b/deps/SZ/sz/src/szd_double.c
index d3df89de77e4d6d6f0d6c1cc6668de7d49d1ac66..93ef42e418550b49c8dd423065bbeb553921b9b9 100644
--- a/deps/SZ/sz/src/szd_double.c
+++ b/deps/SZ/sz/src/szd_double.c
@@ -67,7 +67,6 @@ int SZ_decompress_args_double(double* newData, size_t r1, unsigned char* cmpByte
 		return SZ_FORMAT_ERR;
 	}
 
-	int dim = r1;
 	int doubleSize = sizeof(double);
 	if(tdps->isLossless)
 	{
diff --git a/deps/SZ/sz/src/td_sz.c b/deps/SZ/sz/src/td_sz.c
index c04c4aed6f43d9f4b2aa62465cb792c85a1c03c6..dde5512b1d31e4791d996c94858c00667059bd7c 100644
--- a/deps/SZ/sz/src/td_sz.c
+++ b/deps/SZ/sz/src/td_sz.c
@@ -43,7 +43,7 @@ int tdszCompress(int type, const char * input, const int nelements, const char *
 	// check valid
 	sz_params comp_params = *confparams_cpr;
 	
-	size_t outSize = SZ_compress_args(type, input, (size_t)nelements, (unsigned char*)output, &comp_params);	
+	size_t outSize = SZ_compress_args(type, (void*)input, (size_t)nelements, (unsigned char*)output, &comp_params);	
     return (int)outSize;
 }