Parallella Community

Hi All,

when i try to run my code which i use the external memory of parallella to read input file and to store output file , memory has random behaviour which mean that first run it results no output , second run the output appears , or first run output apear then second run output deosn`t apear and so on ... every run has different output .

can you help me ?

Accesses to off-core memory (this is especially true for external memory, less for on-chip memory) do not follow strongly-ordered memory semantics. This means that writing to a variable and reading it often returns the previous value, not the one you just wrote! This behaviour is very timing-dependent.

Otherwise, check line 42 in your code.

Can you post the code anywhere so we can look at it & advise. I suspect there are relatively simple approaches that can be adopted to solve this.