| 310 | } |
| 311 | |
| 312 | std::vector< StatData > |
| 313 | clsparseDeviceTimer::getVariance( size_t id ) |
| 314 | { |
| 315 | std::vector< StatData > variance = getMean( id ); |
| 316 | |
| 317 | for( cl_uint v = 0; v < variance.size( ); ++v ) |
| 318 | { |
| 319 | double sum = 0; |
| 320 | for( cl_uint n = 0; n < timerData[ id ][ v ].size( ); ++n ) |
| 321 | { |
| 322 | cl_double diff = static_cast<cl_double>( timerData[ id ][ v ][ n ].deltaNanoSec ) - variance[ v ].doubleNanoSec; |
| 323 | diff *= diff; |
| 324 | sum += diff; |
| 325 | } |
| 326 | |
| 327 | variance[ v ].doubleNanoSec = sum / timerData[ id ][ v ].size( ); |
| 328 | } |
| 329 | |
| 330 | return variance; |
| 331 | } |
| 332 | |
| 333 | std::vector< StatData > |
| 334 | clsparseDeviceTimer::getStdDev( size_t id ) |