Re: [Gems-users] ruby results

["Dave Z." <zhu_dave@xxxxxxxxx>]

Operate memory function was called many times, but
observe memory function was not called at all.

--- Dan Gibson <degibson@xxxxxxxx> wrote:


---------------------------------
    Add a printf("foo\n") to ruby's simics/commands.C
in the operate memoryfunction and the observe memory
function and recompile. If Ruby isreceiving requests,
there should be a lot of foo's printed.

Dave Z. wrote:  
simics> phys_mem.infoInformation about phys_mem [class
memory-space]===============================================
                 Snoop device : none                 
Timing model : ruby0Dave.--- Dan Gibson
<degibson@xxxxxxxx> wrote:  
      
Try the following after
ruby0.init:phys_mem0.infophys_mem.infoWhat does Simics
print?Dave Z. wrote:    
          
Yes, the SIMICS_VERSION is set to 3.0 and theGEMS_ROOT
is "..", which is fine. After loading      
        
Ruby,    
          
Simics runs very fast as if Ruby is not working      
        
(which    
          
is true because the results are zero).Thanks,Dave---
Dan Gibson <degibson@xxxxxxxx> wrote:        
              
Did you change the SIMICS_VERSION settings
inMakefile.simics_version and did you change the
GEMS_ROOT setting in the        
              
two    
                  
module makefiles? After changing, you must perform a
full        
              
recompile.    
                  
Dave Z. wrote:            
                  
I'm using the -stall option when I'm starting         
      
                
Simics.            
                  
But the results are all zero. In my benchmarks,       
        
                
I'm            
                  
using processor_bind to bind a thread to a            
   
                
processor.            
                  
For example, the layout of my benchmarks are
asfollows:Thread0 (assigned to
cpu0)MAGIC_BREAKPOINT;...Thread1 (assigned to
cpu1)...MAGIC_BREAKPOINT;So, when Thread0 reaches the
breakpoint, I load                
                
ruby            
                  
and when Thread1 reaches the breakpoint, I dump       
        
                
the            
                  
ruby stats. But the results I get are all zero.       
        
                
The            
                  
Simics ouput is as follows:simics> c[cpu0]
v:0x0000000000011184 p:0x001fdefd184           
                      
magic    
                            
(sethi 0x40000, %g0)Setting new inspection cpu:
cpu0simics> load-module rubysuccessful installation of
the ruby timing          
                      
model.    
                            
simics> ruby0.initRuby Timing ModeWarning:
optimizations not enabled.Creating event
queue...Creating event queue doneCreating system... 
Processors: 2Creating system doneRuby initialization
completesimics> c[cpu1] v:0x00000000000130c0
p:0x001d68130c0           
                      
magic    
                            
(sethi 0x40000, %g0)Setting new inspection cpu:
cpu1simics> cThis used to work with GEMS 1.3 and
Simics          
                      
2.2.19.    
                            
                
                
Is            
                  
there any ideas why it doesn't work with
Simics3.0.22?Thanks a lot!--- Dan Gibson
<degibson@xxxxxxxx> wrote:                  
                      
Use the -stall option on the simics command           

                                
line.    
                                        
Dave Z. wrote:                        
                          
Hi, Is the following problem not a GEMS
issue?Thanks,Dave----- Original Message ----From: Dave
Z. <zhu_dave@xxxxxxxxx>To: gems Users
<gems-users@xxxxxxxxxxx>Sent: Tuesday, November 21,
2006 11:57:21 AMSubject: [Gems-users] ruby
resultsHi,I've upgraded my Simics version to 3.0.22.  
                           
                        
Everything                        
                          
seems to work fine except for the Ruby              
                                            
results.    
                                                      
                        
                                      
I'm            
                                            
not sure if this is a GEMS problem, but the           
            
                                      
results            
                                            
                              
                        
I                        
                          
get regarding the memory requests (misses,            
                 
                        
coherence                        
                          
events, etc.) are all zero. After reading
mycheckpoint, I do the
following:instruction-fetch-mode
instruction-fetch-traceistc-disabledstc-disablecpu-switch-time
1magic-break-enableload-module rubyruby0.initThe only
thing different from my old                        
                                      
configuration            
                                            
                              
                        
is                        
                          
that I get a warning info as follows:[cpu0 info] Note
that on this cpu,instruction-fetch-trace is
implemented usinginstruction-cache-access-trace with a
suitable                              
                        
cache                        
                          
line size.[cpu1 info] Note that on this
cpu,instruction-fetch-trace is implemented
usinginstruction-cache-access-trace with a suitable   
                          
                        
cache                        
                          
line size.The Simics folks say that it's a harmless
info                              
                        
message            
                                
=== message truncated ===
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