// benchmark a single CPU
//
int cpu_benchmarks(BENCHMARK_DESC* bdp) {
HOST_INFO host_info;
int retval;
double vax_mips, int_loops=0, int_time=0, fp_time;
bdp->error_str[0] = '\0';
host_info.clear_host_info();
retval = whetstone(host_info.p_fpops, fp_time, MIN_CPU_TIME);
if (retval) {
bdp->error = true;
sprintf(bdp->error_str, "FP benchmark ran only %f sec; ignoring", fp_time);
return 0;
}
#ifdef _WIN32
// Windows: do integer benchmark only on CPU zero.
// There's a mysterious bug/problem that gives wildly
// differing benchmarks on multi-CPU and multi-core machines,
// if you use all the CPUs at once.
//
if (bdp->ordinal == 0) {
#endif
retval = dhrystone(vax_mips, int_loops, int_time, MIN_CPU_TIME);
if (retval) {
bdp->error = true;
sprintf(bdp->error_str, "Integer benchmark ran only %f sec; ignoring", int_time);
return 0;
}
host_info.p_iops = vax_mips*1e6;
host_info.p_membw = 1e9;
#ifdef _WIN32
}
bdp->host_info = host_info;
bdp->int_loops = int_loops;
bdp->int_time = int_time;
#else
FILE* finfo;
finfo = boinc_fopen(bdp->filename, "w");
if (!finfo) return ERR_FOPEN;
host_info.write_cpu_benchmarks(finfo);
fclose(finfo);
#endif
return 0;
}
/*
* User's entry point.
*/
int sc_main(int argc , char * argv[]) {
/*
* Initialize simulation
*/
scx::scx_initialize("Dhrystone");
/*
* Components
*/
amba_pv::amba_pv_memory<64> memory("Memory", 0x34000100);
scx_evs_Dhrystone dhrystone("Dhrystone");
/*
* Number of instructions to run per quantum
*/
double quantum = parse_quantum(argc, argv);
/*
* Simulation configuration
*/
/* From command-line options */
scx::scx_parse_and_configure(argc, argv, help_quantum);
/* Semi-hosting configuration */
bool v;
if (scx::scx_get_parameter("Dhrystone.Core.cpu1.semihosting-enable", v)) {
/* MP core */
scx::scx_set_parameter("*.Core.cpu1.semihosting-enable", true);
scx::scx_set_parameter("*.Core.cpu1.semihosting-ARM_SVC", 0x123456);
scx::scx_set_parameter("*.Core.cpu1.semihosting-Thumb_SVC", 0xAB);
scx::scx_set_parameter("*.Core.cpu1.semihosting-heap_base", 0x32800000);
scx::scx_set_parameter("*.Core.cpu1.semihosting-heap_limit", 0x0800000);
scx::scx_set_parameter("*.Core.cpu1.semihosting-stack_base", 0x33800000);
scx::scx_set_parameter("*.Core.cpu1.semihosting-stack_limit", 0x0800000);
}
if (scx::scx_get_parameter("Dhrystone.Core.cpu0.semihosting-enable", v)) {
/* MP core */
scx::scx_set_parameter("*.Core.cpu0.semihosting-enable", true);
scx::scx_set_parameter("*.Core.cpu0.semihosting-ARM_SVC", 0x123456);
scx::scx_set_parameter("*.Core.cpu0.semihosting-Thumb_SVC", 0xAB);
scx::scx_set_parameter("*.Core.cpu0.semihosting-heap_base", 0x32000000);
scx::scx_set_parameter("*.Core.cpu0.semihosting-heap_limit", 0x0800000);
scx::scx_set_parameter("*.Core.cpu0.semihosting-stack_base", 0x33000000);
scx::scx_set_parameter("*.Core.cpu0.semihosting-stack_limit", 0x0800000);
} else {
/* UP core */
scx::scx_set_parameter("*.Core.semihosting-enable", true);
scx::scx_set_parameter("*.Core.semihosting-ARM_SVC", 0x123456);
scx::scx_set_parameter("*.Core.semihosting-Thumb_SVC", 0xAB);
scx::scx_set_parameter("*.Core.semihosting-heap_base", 0x32000000);
scx::scx_set_parameter("*.Core.semihosting-heap_limit", 0x0800000);
scx::scx_set_parameter("*.Core.semihosting-stack_base", 0x33000000);
scx::scx_set_parameter("*.Core.semihosting-stack_limit", 0x0800000);
}
/* Simulation quantum, i.e. seconds to run per quantum */
tlm::tlm_global_quantum::instance().set(sc_core::sc_time(quantum
/ 100000000,
sc_core::SC_SEC));
/*
* Bindings
*/
dhrystone.amba_pv_m(memory.amba_pv_s);
/*
* Start of simulation
*/
sc_core::sc_start();
return EXIT_SUCCESS;
}
