int clocks_storage(uint64_t *** aperf_val, uint64_t *** mperf_val, uint64_t *** tsc_val)
{
static int init = 1;
static uint64_t ** aperf = NULL, ** mperf = NULL, ** tsc = NULL;
static uint64_t totalThreads = 0;
if (init)
{
totalThreads = num_devs();
aperf = (uint64_t **) libmsr_malloc(totalThreads * sizeof(uint64_t *));
mperf = (uint64_t **) libmsr_malloc(totalThreads * sizeof(uint64_t *));
tsc = (uint64_t **) libmsr_malloc(totalThreads * sizeof(uint64_t *));
allocate_batch(CLOCKS_DATA, 3UL * num_devs());
load_thread_batch(MSR_IA32_APERF, aperf, CLOCKS_DATA);
load_thread_batch(MSR_IA32_MPERF, mperf, CLOCKS_DATA);
load_thread_batch(IA32_TIME_STAMP_COUNTER, tsc, CLOCKS_DATA);
init = 0;
}
if (aperf_val)
{
*aperf_val = aperf;
}
if (mperf_val)
{
*mperf_val = mperf;
}
if (tsc_val)
{
*tsc_val = tsc;
}
return 0;
}
int rapl_storage(struct rapl_data **data, uint64_t **flags)
{
static struct rapl_data *rapl = NULL;
static uint64_t *rapl_flags = NULL;
static uint64_t sockets = 0;
static int init = 0;
#ifdef STORAGE_DEBUG
fprintf(stderr, "%s %s::%d DEBUG: (rapl_storage) data pointer is %p, flags pointer is %p, data is at %p, flags are %lx at %p\n", getenv("HOSTNAME"), __FILE__, __LINE__, data, flags, rapl, (rapl_flags ? *rapl_flags : 0), rapl_flags);
#endif
if (!init)
{
init = 1;
sockets = num_sockets();
rapl = (struct rapl_data *) libmsr_malloc(sockets * sizeof(struct rapl_data));
rapl_flags = (uint64_t *) libmsr_malloc(sizeof(uint64_t));
if (setflags(rapl_flags))
{
return -1;
}
if (data != NULL)
{
*data = rapl;
}
if (flags != NULL)
{
*flags = rapl_flags;
}
#ifdef LIBMSR_DEBUG
fprintf(stderr, "%s %s::%d DEBUG: (storage) initialized rapl data at %p, flags are %lx, (flags at %p, rapl_flags at %p\n", getenv("HOSTNAME"), __FILE__, __LINE__, rapl, **flags, flags, rapl_flags);
fprintf(stderr, "DEBUG: socket 0 has pkg_bits at %p\n", &rapl[0].pkg_bits);
#endif
return 0;
}
/* If the data pointer is not null, it should point to the rapl array. */
if (data != NULL)
{
*data = rapl;
}
/* if the flags pointer is not null, it should point to the rapl flags. */
if (flags != NULL)
{
*flags = rapl_flags;
}
return 0;
}
/// @brief Retrieve file descriptor per logical processor.
///
/// @param [in] dev_idx Unique logical processor identifier.
///
/// @return Unique file descriptor, else NULL.
static int *core_fd(const int dev_idx)
{
static int init = 0;
static int *file_descriptors = NULL;
static uint64_t devices = 0;
if (!init)
{
init = 1;
uint64_t numDevs = num_devs();;
devices = numDevs;
file_descriptors = (int *) libmsr_malloc(devices * sizeof(int));
}
if (dev_idx < devices)
{
return &(file_descriptors[dev_idx]);
}
libmsr_error_handler("core_fd(): Array reference out of bounds", LIBMSR_ERROR_ARRAY_BOUNDS, getenv("HOSTNAME"), __FILE__, __LINE__);
return NULL;
}
