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HewlettPackard / cacti

An integrated cache and memory access time, cycle time, area, leakage, and dynamic power model
http://www.hpl.hp.com/research/cacti/
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Floating-point exception #10

Closed andygongyb closed 5 years ago

andygongyb commented 5 years ago

Hi,

I tried to run the latest build with the example config files, but I got floating-point exceptions. I have tried building the binary with GCC 4.9 and GCC 6.5, and both compilations had the same problem.

Here is the GDB backtrace log from running ./cacti -infile 2DDRAM_micron1Gb.cfg. I appreciate it if you could provide any insight on it!

Program received signal SIGFPE, Arithmetic exception. 0x000000000045e321 in IOTechParam::IOTechParam (this=0x6aa0b0, g_ip=0x0, io_type1=32767, num_mem_dq=-56112, mem_data_width=0, num_dq=6987952, connection=0, num_loads=1, freq=0) at extio_technology.cc:918 918 (num_dq/mem_data_width)/(g_ip->num_clk/2); (gdb) bt

0 0x000000000045e321 in IOTechParam::IOTechParam (this=0x6aa0b0, g_ip=0x0, io_type1=32767, num_mem_dq=-56112, mem_data_width=0, num_dq=6987952, connection=0, num_loads=1, freq=0)

at extio_technology.cc:918

1 0x000000000041f530 in cacti_interface (infile_name=...) at io.cc:1292

2 0x0000000000411e64 in main (argc=0, argv=0x0) at main.cc:78

Thanks, Andy

robin-tukl commented 5 years ago

Hi Andy, that is maybe because of some uninitialized variables that were introduced during the io update. What works for me, was to add everything after line 185 from the chache.cfg. Best regards, Yannick

andygongyb commented 5 years ago

Thank you! I used the chache.cfg and it works!