[mvapich-discuss] mvapich xhpl memory usage

Brady Chang bchang at atipa.com
Tue Jun 20 10:34:39 EDT 2006


Hello,
I installed OFED 1.0 (mvapich 0.97)and compile Linpack benchmark.
When I run xhpl, the memory usage creeps up with each NB. and as each N changes the memory allocated is not freed. 
LAZY_MEM_REGISTER is not defined per http://mail.cse.ohio-state.edu/pipermail/mvapich-discuss/2006-March/000057.html  I removed it from Make.mvapich.gen2. tar it back up and reran the install.
 
 
 
change in NB from 144 to 248 
============================================================================
T/V                N    NB     P     Q               Time             Gflops
----------------------------------------------------------------------------
WR00L2L2       15336   144     2     2              82.07          2.930e+01
----------------------------------------------------------------------------
||Ax-b||_oo / ( eps * ||A||_1  * N        ) =        0.0094357 ...... PASSED
||Ax-b||_oo / ( eps * ||A||_1  * ||x||_1  ) =        0.0066744 ...... PASSED
||Ax-b||_oo / ( eps * ||A||_oo * ||x||_oo ) =        0.0013098 ...... PASSED
============================================================================
T/V                N    NB     P     Q               Time             Gflops
----------------------------------------------------------------------------
WR00L2L2       15336   248     2     2              83.76          2.871e+01
----------------------------------------------------------------------------
 
 2  0 152692 2317452   2120  29992    0    0     0     0  256  3474 87  0 12  0
 2  0 152692 2317452   2120  29992    0    0     0     0  257  5697 69  1 31  0
 2  0 152692 2313744   2128  29984    0    0     0     8  256   613 79  0 21  0
 4  0 152692 2313836   2128  29984    0    0     0     6  258   609 83  0 17  0
 
changes of N from 15336 to 20480
T/V                N    NB     P     Q               Time             Gflops
----------------------------------------------------------------------------
WR00L2L2       15336   208     2     2              83.59          2.877e+01
----------------------------------------------------------------------------
||Ax-b||_oo / ( eps * ||A||_1  * N        ) =        0.0073216 ...... PASSED
||Ax-b||_oo / ( eps * ||A||_1  * ||x||_1  ) =        0.0051789 ...... PASSED
||Ax-b||_oo / ( eps * ||A||_oo * ||x||_oo ) =        0.0010163 ...... PASSED
============================================================================
T/V                N    NB     P     Q               Time             Gflops
----------------------------------------------------------------------------
WR00L2L2       20480   144     2     2             190.35          3.009e+01
----------------------------------------------------------------------------
||Ax-b||_oo / ( eps * ||A||_1  * N        ) =        0.0183728 ...... PASSED
||Ax-b||_oo / ( eps * ||A||_1  * ||x||_1  ) =        0.0052194 ...... PASSED
||Ax-b||_oo / ( eps * ||A||_oo * ||x||_oo ) =        0.0009719 ...... PASSED
 
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy id wa
 5  0 152692 658748   2444  29976    0    0     0     6  255  2388 89  0 10  0
 2  0 152692 658624   2444  29976    0    0     0     0  256  6921 78  0 22  0
 2  0 152692 223012   2452  29968    0    0     0     2  254    62 51  3 46  0
 1  3  84364  20720   1880  27448    0   23     0    57  260   107 32  4 24 39
 0  3 316044  26064    212  17820   66 26013    73 26017  420   161 27  6 16 51
 4  0 312540  19844    244  19288 4405    0  4620     5  664  1098 62  1 30  7
 
thanks
-Brady
 
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