[Gems-users] why the ruby cannot run multi-processors

[wangshuz@xxxxxxxxxxxxxxxxx]

Hello All,

I use Simics4.2 and GEMS 2.1.1

I can load ruby successfully. However I just can set "g_NUM_PROCESSORS 1". when I want  to set the processor number to 2 or more. It always have some problems.

This is my report of my error:

simics> instruction-fetch-mode instruction-fetch-trace

[board_cmp0.cpu[0] info] Instruction fetch trace is implemented using instruction cache access trace with a suitable cache line size.

simics> istc-disable

Turning I-STC off and flushing old data

simics> dstc-disable

Turning D-STC off and flushing old data

simics> cpu-switch-time 1

simics> load-module ruby

successful installation of the ruby timing model.

Registering a user decoder for the 'ultrasparc-ii' class.

simics> ruby0.init

Ruby Timing Mode

Creating event queue...

Creating event queue done

Creating system...

  Processors: 4

Segmentation fault (SIGSEGV) in main thread

#0  0x002ae010 (/home/shu/gems/simics-4.2.72/x86-linux/bin/libsimics-common.so + 0xb9010)

#1  0x002ae0c6 in SIM_step_count + 0x36 (/home/shu/gems/simics-4.2.72/x86-linux/bin/libsimics-common.so + 0xb90c6)

#2  0x02564ad2 in _ZN15SimicsProcessorC1EP6Systemi + 0x122 (/home/shu/gems/simics_42_workspace/x86-linux/lib/ruby.so + 0x23aad2)

#3  0x02559f71 in _ZN12SimicsDriverC1EP6System + 0x221 (/home/shu/gems/simics_42_workspace/x86-linux/lib/ruby.so + 0x22ff71)

#4  0x0257b2dc in _ZN6SystemC1Ev + 0x41c (/home/shu/gems/simics_42_workspace/x86-linux/lib/ruby.so + 0x2512dc)

#5  0x02497b0a in init_simulator + 0x28a (/home/shu/gems/simics_42_workspace/x86-linux/lib/ruby.so + 0x16db0a)

#6  0x02497f95 in _ZN9initvar_t8allocateEv + 0x15 (/home/shu/gems/simics_42_workspace/x86-linux/lib/ruby.so + 0x16df95)

#7  0x024aa997 in _ZN9initvar_t12dispatch_setEPvP11conf_objectP10attr_valueS4_ + 0xe7 (/home/shu/gems/simics_42_workspace/x86-linux/lib/ruby.so + 0x180997)

#8  0x024aac3f in initvar_dispatch_set + 0x2f (/home/shu/gems/simics_42_workspace/x86-linux/lib/ruby.so + 0x180c3f)

#9  0x00281123 (/home/shu/gems/simics-4.2.72/x86-linux/bin/libsimics-common.so + 0x8c123)

#10  0x00281acd in SIM_set_attribute + 0x5d (/home/shu/gems/simics-4.2.72/x86-linux/bin/libsimics-common.so + 0x8cacd)

#11  0x0032a6e3 (/home/shu/gems/simics-4.2.72/x86-linux/bin/libsimics-common.so + 0x1356e3)

#12  0x0063cf4d in PyCFunction_Call + 0x15d (/home/shu/gems/simics-4.2.72/x86-linux/sys/lib/libpython2.5.so.1.0 + 0x58f4d)

#13  0x0068a48c in PyEval_EvalFrameEx + 0x5d6c (/home/shu/gems/simics-4.2.72/x86-linux/sys/lib/libpython2.5.so.1.0 + 0xa648c)

#14  0x0068b893 in PyEval_EvalCodeEx + 0x793 (/home/shu/gems/simics-4.2.72/x86-linux/sys/lib/libpython2.5.so.1.0 + 0xa7893)

#15  0x00628fd0 (/home/shu/gems/simics-4.2.72/x86-linux/sys/lib/libpython2.5.so.1.0 + 0x44fd0)

The simulation state has been corrupted. Simulation cannot continue.

Please restart Simics.

Traceback (most recent call last):

  File "/mp/simics-4.2/src/core/common/terminal_frontend.py", line 509, in <lambda>

  File "/mp/simics-4.2/src/core/common/terminal_frontend.py", line 383, in write

  File "/mp/simics-4.2/src/core/common/terminal_frontend.py", line 363, in write_line

  File "/mp/simics-4.2/src/core/common/terminal_frontend.py", line 354, in output_text

  File "/mp/simics-4.2/src/core/common/terminal_frontend.py", line 342, in raw_write

SimExc_Index: Non-existent processor id

Exception in Python call

I don't know why I have these problems .

Regards,

Shu Wang