diff --git a/src/AuroraDefs.h b/src/AuroraDefs.h
index 2c4cad4..a20d163 100644
--- a/src/AuroraDefs.h
+++ b/src/AuroraDefs.h
@@ -1,5 +1,7 @@
 #ifndef AURORA_AURORADEFS_H
 #define AURORA_AURORADEFS_H
+
+#define EIGEN_USE_MKL_ALL
 #include <complex>
 //必须在mkl.h和Eigen的头之前，<complex>之后
 #define MKL_Complex16 std::complex<double>