---
# System prepended metadata

title: CO-HW1
tags: [computer organization, Computer Organization, thu]

---

###### tags: `Computer Organization` `computer organization` `thu`
{%hackmd theme-dark %}

# CO-HW1

## Machine spec
![](https://i.imgur.com/kOAJQYC.png)

## Test result
![](https://i.imgur.com/lpocULQ.png)
![](https://i.imgur.com/kCYT70y.png)
$$R_{peak} = n_{fpu} \cdot n_{cores} \cdot f$$
$$efficiency = \frac{Gflops}{R_{peak}} = \frac{93.818}{115.2}\approx 81.44\%$$  

## HPL.out v1
```
================================================================================
HPLinpack 2.3  --  High-Performance Linpack benchmark  --   December 2, 2018
Written by A. Petitet and R. Clint Whaley,  Innovative Computing Laboratory, UTK
Modified by Piotr Luszczek, Innovative Computing Laboratory, UTK
Modified by Julien Langou, University of Colorado Denver
================================================================================

An explanation of the input/output parameters follows:
T/V    : Wall time / encoded variant.
N      : The order of the coefficient matrix A.
NB     : The partitioning blocking factor.
P      : The number of process rows.
Q      : The number of process columns.
Time   : Time in seconds to solve the linear system.
Gflops : Rate of execution for solving the linear system.

The following parameter values will be used:

N      :   10000 
NB     :      88      108      128      168      188 
PMAP   : Row-major process mapping
P      :       2 
Q      :       2 
PFACT  :    Left    Crout    Right 
NBMIN  :       4 
NDIV   :       2 
RFACT  :   Crout 
BCAST  :   1ring 
DEPTH  :       0 
SWAP   : Mix (threshold = 64)
L1     : transposed form
U      : transposed form
EQUIL  : yes
ALIGN  : 8 double precision words

--------------------------------------------------------------------------------

- The matrix A is randomly generated for each test.
- The following scaled residual check will be computed:
      ||Ax-b||_oo / ( eps * ( || x ||_oo * || A ||_oo + || b ||_oo ) * N )
- The relative machine precision (eps) is taken to be               1.110223e-16
- Computational tests pass if scaled residuals are less than                16.0

================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2L4       10000    88     2     2               7.21             9.2530e+01
HPL_pdgesv() start time Mon Oct  3 17:47:41 2022

HPL_pdgesv() end time   Mon Oct  3 17:47:48 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.42220796e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2C4       10000    88     2     2               7.19             9.2763e+01
HPL_pdgesv() start time Mon Oct  3 17:47:49 2022

HPL_pdgesv() end time   Mon Oct  3 17:47:56 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.42220796e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2R4       10000    88     2     2               7.19             9.2776e+01
HPL_pdgesv() start time Mon Oct  3 17:47:57 2022

HPL_pdgesv() end time   Mon Oct  3 17:48:04 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.75394366e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2L4       10000   108     2     2               7.24             9.2149e+01
HPL_pdgesv() start time Mon Oct  3 17:48:05 2022

HPL_pdgesv() end time   Mon Oct  3 17:48:12 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.37582302e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2C4       10000   108     2     2               7.15             9.3273e+01
HPL_pdgesv() start time Mon Oct  3 17:48:13 2022

HPL_pdgesv() end time   Mon Oct  3 17:48:20 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.37582302e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2R4       10000   108     2     2               7.15             9.3310e+01
HPL_pdgesv() start time Mon Oct  3 17:48:21 2022

HPL_pdgesv() end time   Mon Oct  3 17:48:28 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.52455130e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2L4       10000   128     2     2               7.16             9.3090e+01
HPL_pdgesv() start time Mon Oct  3 17:48:29 2022

HPL_pdgesv() end time   Mon Oct  3 17:48:36 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.91576596e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2C4       10000   128     2     2               7.16             9.3104e+01
HPL_pdgesv() start time Mon Oct  3 17:48:37 2022

HPL_pdgesv() end time   Mon Oct  3 17:48:44 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.91576596e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2R4       10000   128     2     2               7.18             9.2910e+01
HPL_pdgesv() start time Mon Oct  3 17:48:45 2022

HPL_pdgesv() end time   Mon Oct  3 17:48:52 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.86450164e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2L4       10000   168     2     2               7.80             8.5471e+01
HPL_pdgesv() start time Mon Oct  3 17:48:53 2022

HPL_pdgesv() end time   Mon Oct  3 17:49:01 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.51145728e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2C4       10000   168     2     2               7.81             8.5399e+01
HPL_pdgesv() start time Mon Oct  3 17:49:02 2022

HPL_pdgesv() end time   Mon Oct  3 17:49:10 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.51145728e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2R4       10000   168     2     2               7.80             8.5503e+01
HPL_pdgesv() start time Mon Oct  3 17:49:10 2022

HPL_pdgesv() end time   Mon Oct  3 17:49:18 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.97913606e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2L4       10000   188     2     2               7.25             9.2030e+01
HPL_pdgesv() start time Mon Oct  3 17:49:19 2022

HPL_pdgesv() end time   Mon Oct  3 17:49:26 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.90563662e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2C4       10000   188     2     2               7.24             9.2061e+01
HPL_pdgesv() start time Mon Oct  3 17:49:27 2022

HPL_pdgesv() end time   Mon Oct  3 17:49:34 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.90563662e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2R4       10000   188     2     2               7.24             9.2063e+01
HPL_pdgesv() start time Mon Oct  3 17:49:35 2022

HPL_pdgesv() end time   Mon Oct  3 17:49:43 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.65920119e-03 ...... PASSED
================================================================================

Finished     15 tests with the following results:
             15 tests completed and passed residual checks,
              0 tests completed and failed residual checks,
              0 tests skipped because of illegal input values.
--------------------------------------------------------------------------------

End of Tests.
================================================================================

```

## HPL.out v2
```
================================================================================
HPLinpack 2.3  --  High-Performance Linpack benchmark  --   December 2, 2018
Written by A. Petitet and R. Clint Whaley,  Innovative Computing Laboratory, UTK
Modified by Piotr Luszczek, Innovative Computing Laboratory, UTK
Modified by Julien Langou, University of Colorado Denver
================================================================================

An explanation of the input/output parameters follows:
T/V    : Wall time / encoded variant.
N      : The order of the coefficient matrix A.
NB     : The partitioning blocking factor.
P      : The number of process rows.
Q      : The number of process columns.
Time   : Time in seconds to solve the linear system.
Gflops : Rate of execution for solving the linear system.

The following parameter values will be used:

N      :   10000 
NB     :      88      108      128      168      188 
PMAP   : Row-major process mapping
P      :       2 
Q      :       2 
PFACT  :    Left    Crout    Right 
NBMIN  :       4 
NDIV   :       2 
RFACT  :   Crout 
BCAST  :   1ring 
DEPTH  :       0 
SWAP   : Mix (threshold = 64)
L1     : transposed form
U      : transposed form
EQUIL  : yes
ALIGN  : 8 double precision words

--------------------------------------------------------------------------------

- The matrix A is randomly generated for each test.
- The following scaled residual check will be computed:
      ||Ax-b||_oo / ( eps * ( || x ||_oo * || A ||_oo + || b ||_oo ) * N )
- The relative machine precision (eps) is taken to be               1.110223e-16
- Computational tests pass if scaled residuals are less than                16.0

================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2L4       10000    88     2     2               7.22             9.2365e+01
HPL_pdgesv() start time Mon Oct  3 23:18:34 2022

HPL_pdgesv() end time   Mon Oct  3 23:18:41 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.42220796e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2C4       10000    88     2     2               7.17             9.2946e+01
HPL_pdgesv() start time Mon Oct  3 23:18:42 2022

HPL_pdgesv() end time   Mon Oct  3 23:18:49 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.42220796e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2R4       10000    88     2     2               7.17             9.2970e+01
HPL_pdgesv() start time Mon Oct  3 23:18:50 2022

HPL_pdgesv() end time   Mon Oct  3 23:18:57 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.75394366e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2L4       10000   108     2     2               7.11             9.3815e+01
HPL_pdgesv() start time Mon Oct  3 23:18:58 2022

HPL_pdgesv() end time   Mon Oct  3 23:19:05 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.37582302e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2C4       10000   108     2     2               7.11             9.3818e+01
HPL_pdgesv() start time Mon Oct  3 23:19:06 2022

HPL_pdgesv() end time   Mon Oct  3 23:19:13 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.37582302e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2R4       10000   108     2     2               7.11             9.3786e+01
HPL_pdgesv() start time Mon Oct  3 23:19:14 2022

HPL_pdgesv() end time   Mon Oct  3 23:19:21 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.52455130e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2L4       10000   128     2     2               7.15             9.3252e+01
HPL_pdgesv() start time Mon Oct  3 23:19:22 2022

HPL_pdgesv() end time   Mon Oct  3 23:19:29 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.91576596e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2C4       10000   128     2     2               7.15             9.3307e+01
HPL_pdgesv() start time Mon Oct  3 23:19:30 2022

HPL_pdgesv() end time   Mon Oct  3 23:19:37 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.91576596e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2R4       10000   128     2     2               7.15             9.3252e+01
HPL_pdgesv() start time Mon Oct  3 23:19:38 2022

HPL_pdgesv() end time   Mon Oct  3 23:19:45 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.86450164e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2L4       10000   168     2     2               7.69             8.6680e+01
HPL_pdgesv() start time Mon Oct  3 23:19:46 2022

HPL_pdgesv() end time   Mon Oct  3 23:19:53 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.51145728e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2C4       10000   168     2     2               7.71             8.6453e+01
HPL_pdgesv() start time Mon Oct  3 23:19:54 2022

HPL_pdgesv() end time   Mon Oct  3 23:20:02 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.51145728e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2R4       10000   168     2     2               7.69             8.6687e+01
HPL_pdgesv() start time Mon Oct  3 23:20:03 2022

HPL_pdgesv() end time   Mon Oct  3 23:20:11 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.97913606e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2L4       10000   188     2     2               7.21             9.2501e+01
HPL_pdgesv() start time Mon Oct  3 23:20:11 2022

HPL_pdgesv() end time   Mon Oct  3 23:20:19 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.90563662e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2C4       10000   188     2     2               7.21             9.2548e+01
HPL_pdgesv() start time Mon Oct  3 23:20:19 2022

HPL_pdgesv() end time   Mon Oct  3 23:20:27 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.90563662e-03 ...... PASSED
================================================================================
T/V                N    NB     P     Q               Time                 Gflops
--------------------------------------------------------------------------------
WR00C2R4       10000   188     2     2               7.21             9.2513e+01
HPL_pdgesv() start time Mon Oct  3 23:20:27 2022

HPL_pdgesv() end time   Mon Oct  3 23:20:35 2022

--------------------------------------------------------------------------------
||Ax-b||_oo/(eps*(||A||_oo*||x||_oo+||b||_oo)*N)=   2.65920119e-03 ...... PASSED
================================================================================

Finished     15 tests with the following results:
             15 tests completed and passed residual checks,
              0 tests completed and failed residual checks,
              0 tests skipped because of illegal input values.
--------------------------------------------------------------------------------

End of Tests.
================================================================================

```