https://community.intel.com/t5/Intel-Fortran-Compiler/stack-size-heap-size-large-data-set/m-p/853709#M66837 <DIV style="margin:0px;"></DIV> I suggest that you add the /heap-arrays option to your build - then you will likely not have to worry about the stack. You can set a higher stack size in the Linker &gt; System &gt; Stack Reserve Size property. Note, though, that the stack is still limited to about 1GB even on the 64-bit platform. I thing in version 10, there is no property for heap arrays so you can add it on the "Command Line" property page under "Additional Options".<BR /><BR />I also recommend using ALLOCATABLE arrays for your large arrays rather than declaring them some large fixed size.<BR /><BR />Lastly, version 10.0 is old and you may run into some issues. Version 11 is current.<BR /> Fri, 30 Jan 2009 14:28:58 GMT Steven_L_Intel1 2009-01-30T14:28:58Z https://community.intel.com/t5/Intel-Fortran-Compiler/stack-size-heap-size-large-data-set/m-p/853708#M66836 Hi, <BR /><BR />I am using Microsoft Visual Studio 2005 and the Intel Visual Fortran Compiler 10.0. Also, I am using the compiler on a 64 bit platform. <BR /><BR />I would like to read a large data matrix into fortran and I am worried about my program crashing because of stack size or other memory limitations. Is there a way to increase the stack size so this will not happen? Or should I increase the heap size instead of, or in addition to,increasing the stack size? Also, when I increase the stack size or heap size for the overall program, does this limit the amount of memory that I can allocate to each thread when I parallelize in the program?<BR /><BR />I appreciate any advice. Thanks! Fri, 30 Jan 2009 06:44:23 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/stack-size-heap-size-large-data-set/m-p/853708#M66836 dsmanoli 2009-01-30T06:44:23Z https://community.intel.com/t5/Intel-Fortran-Compiler/stack-size-heap-size-large-data-set/m-p/853709#M66837 <DIV style="margin:0px;"></DIV> I suggest that you add the /heap-arrays option to your build - then you will likely not have to worry about the stack. You can set a higher stack size in the Linker &gt; System &gt; Stack Reserve Size property. Note, though, that the stack is still limited to about 1GB even on the 64-bit platform. I thing in version 10, there is no property for heap arrays so you can add it on the "Command Line" property page under "Additional Options".<BR /><BR />I also recommend using ALLOCATABLE arrays for your large arrays rather than declaring them some large fixed size.<BR /><BR />Lastly, version 10.0 is old and you may run into some issues. Version 11 is current.<BR /> Fri, 30 Jan 2009 14:28:58 GMT https://community.intel.com/t5/Intel-Fortran-Compiler/stack-size-heap-size-large-data-set/m-p/853709#M66837 Steven_L_Intel1 2009-01-30T14:28:58Z