PERM is a C library for persistent heap management and is intended for use with a dynamic-memory allocator (e.g. malloc, free). The PERM memory allocator replaces the standard C dynamic memory allocation functions with compatible versions that provide persistent memory to application programs. Memory allocated with the PERM allocatory will persist between program invocations after a call to a checkpoint function. This function essentially saves the state of the heap and registered global variables to a file which may reside in flash memory or other node local storage. A few other functions are also provided by the library to manage checkpoint files. Global variables in an application can be marked persistent and be included in a checkpoint by using a compiler attribute defined as PERM. The PERM checkpoint methof is not dependent on the programming model ans works with distributed memory or shared memory programs.
PERM; 002847MLTPL00 LLNL-CODE-613632
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Open Source Software package available from Lawrence Livermore National Laboratory at the following URL: http://computation.llnl.gov/casc/perm/
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Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
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Software Package Details
Title: Persistent heap Management library
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