Ifort -parallel option on Mac Pro 12-core ?

Ifort -parallel option on Mac Pro 12-core ?

Problem: Code runs very well on a Mac Pro with 8-core, include ifort -parallel option. We get a new Mac Pro with 12-core recently, ifort -parallel option doesn't work. Code tested runs goodon one core.Error: forrtl: severe (174): SIGSEGV, segmentation fault occurred% ifort -V Intel Fortran Intel 64 Compiler Professional for applications running on Intel 64, Version 11.1 Build 20090827 Package ID: m_cprof_p_11.1.067 Copyright (C) 1985-2009 Intel Corporation. All rights reserved. % ifort -VIntel Fortran Intel 64 Compiler Professional for applications running on Intel 64,Version 11.1 Build 20090827 Package ID: m_cprof_p_11.1.067Copyright (C) 1985-2009 Intel Corporation.Machine: Mac Pro 2 x 6-core intel xeon 2.66 Ghz, 24 GB memory.Any idea? ThanksHaoguo

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This question might get more timely expert attention on the linux/Mac Fortran forum or with submission of a reproducer in a problem report on your premier.intel.com account.
Among the questions you left unanswered: Did you check whether an increase in stack limit is required, possibly on account of attempting to run more threads?

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