pdsyevx library call issue

[divyak_cdac]

library call PDSYEVX which is used in scalapack example programs from netlib website .The control of program is terminating midway inside the library call(PDSYEVX).In spite of successful compilation and error free execution program execution halts after the call. No print statements are executing after the library call.
please help. Thankyou in advance.