Re: [Gems-users] Failed assertion in DirectoryMemory.C

[Enric Herrero <enricherrero@xxxxxxxx>]

Hi,
 We have checked the L2->Dir mapping function and it's like that: 
 
 if (RubyConfig::memoryBits() > 0) {
     dirNode = addr.bitSelect(RubyConfig::dataBlockBits(),
                         RubyConfig::dataBlockBits()+RubyConfig::memoryBits()-1);
 }

 We would like to know which variable in ruby config is related with memoryBits(). We want to use interleaved memory so we would like to have a number of bits according to the number of memories.
 
 Also we would like to know better what some config parameters mean:
 
 g_MEMORY_SIZE_BYTES: 4294967296
 (This means we have 4096 Mb of RAM)
 
 We have an address space size of 64 bits since we are working with Sarek
 
 g_MEMORY_MODULE_BITS: 0
 How is this parameter calculated?
 
 Thank you,
 
 /Marco and Enric
 
Mike Marty <mikem@xxxxxxxxxxx> escribió:
>  This error appears when the mapping functions in Slicc don't agree with 
> what the individual DirectoryMemory's range of memory.
>
> See the map_Address_to_Directory and map_Address_to_DirectoryNode 
> functions in ruby/slicc_interface/RubySlicc_ComponentMapping.h
>
> --Mike
>
>
> Enric Herrero wrote:
>
> >Hi,
> >
> >We are running simulations with a new protocol we have
> >written. It worked in the tester and also while
> >running SPLASH2 Water-Spatial with 4,8,16 and 32
> >processors. But we have the following error when
> >simulating with 64 processors:
> >
> >Processors: 64
> >Creating system done
> >Ruby initialization complete
> >failed assertion 'isPresent(address)' at fn
> >Directory_Entry&
>  DirectoryMemory::lookup(PhysAddress)
> >in system/DirectoryMemory.C:132
> >failed assertion 'isPresent(address)' at fn
> >Directory_Entry& DirectoryMemory::lookup(PhysAddress)
> >in system/DirectoryMemory.C:132
> >
> >We think that maybe it is a problem of how we
> >configure the simulation since the protocol worked
> >with the other configurations. The problem appears
> >only when we load ruby. We have defined the following
> >parameters:
> >
> >@boards = {0 : [[0, 4, 4096],[1, 4, 0],[2, 4, 0],[3,
> >4, 0],[4, 4, 0],[5, 4, 0]],
> >           1 : [[0, 4, 0],[1, 4, 0],[2, 4, 0],[3, 4,
> >0],[4, 4, 0],[5, 4, 0]],
> >           2 : [[0, 4, 0],[1, 4, 0],[2, 4, 0],[3, 4,
> >0]]} #4096 Mb of main memory
> >
> >@sarek_disk_size = 4256972800L
> >
> >ruby0.setparam L2_CACHE_NUM_SETS_BITS 18 #512kB/proc
> >ruby0.setparam g_MEMORY_SIZE_BYTES 4294967296 #32 bits
> >
> >We would be very
>  grateful if someone knows why this
> >error appears. Thank you.
> >
> >/Marco and Enric
> >
> >
> > 
> > 
> >  
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---

LLama Gratis a cualquier PC del Mundo.
Llamadas a fijos y móviles desde 1 céntimo por minuto.
http://es.voice.yahoo.com