1. Memory Impact Assessment
(MemIA)
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2. MEMIA PRODUCT
The MEMIA product has been made for the Impact Analysis of memory
compilers with the change in SPICE.
It generates the results in an excel sheet and in graphical form for
simplicity.
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3. Programming Languages Used:
1. Perl
2. Shell Scripting
3. Visual Basic
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4. Impact Assessment - Flow
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•Compiler Name
•PVT
•Slope/Loads(defa
ult)
•Different Mcf
setup
•Spice models
•Analysis type
•Cutlit (optional)
Excel Based Input
(Techno based)
•Using Initial archived
setup
•Automatic update
Update existing mcf
setup
•In background
mcf simulations
•mcf output dump in
Excel
Excel based result file
•Excel
standardization for
required analysis
Comparison Analysis from Excel result
file
Using VB &
Pivot Table
Using Perl
Script
Using Excel
Using
Memvalid Kit

5. Parameters included in the Analysis
1. P_leakage
2. P_ac_rd_hpa
3. tP_ac_wr_hpa
4. Th
5. taa
6. tckh
7. tckl
8. tcycle
9. tdh
10.tph
11.tah
12.tds
13.tps
14.tas
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6. How to run the
MEMIA product
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7. 1. Update the 'Path of Directory of MCF Result' in memIA.xls as your current
working directory.
2. Source the script $MEMIAROOT/bin/upt_comp_list 'space' 'name of the
Technology' in the user path. eg source $MEMIAROOT/bin/upt_comp_list
CMOSM40
3. In the excel file click on 'Update Compiler List' button and select the
respective technology and compiler.
UPDATING THE COMPILER LIST:
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8. MEMVALID KIT:
Specify the user name and path of your password file in memIA.xls (eg.
/home/singht/tanvi.pf)
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9. SPICE Comparison
1. Select 'yes' if you want to compare the reference spice with the
given spice.
2. Give the path for the new spice4Mem in memIA.xls.
3. If user selects 'no' then it will not compare the timing parameters
and will simply generate results for a single SPICE.
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10. GIVING A CUTLIST:
1. In memIA.xls select 'yes' for cutlist.
2. Have the required cutlist in the work area as 'compiler_name.cutlist'
(eg. CMOSM40_ST_ROM.cutlist)
3. If the user selects 'no' then a default cutlist will be taken from the
mcf setup.
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11. GLOBALLY RUNNING THE
PRODUCT:
1. Update the path in the excel file. (same as the path above i.e.
current working directory)
2. Select the required technology, compiler and it's version in the excel
interface.
3. Update the username and password in the excel file.
4. Source MEMIAROOT
5. Run 'command'
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12. GETTING RESULT IN GRAPHICAL
FORM:
1. After getting the ouput files, click on the button 'Generate Pivot Table'
in memIA.xls.
2. This creates a graphical comparison sheet named 'result.xlsx' in the
work area specified in memIA.xls.
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13. DEMO
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14. CONTENTS OF INPUT SHEET
Input Excel contains 3 sheets :
 Master sheet :It works as a interface for user it takes input from user.
 Track Sheet :Contains Fixed fields of measure.setup
 Configuration :Contains fields of measure.setup of different compilers
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15. Update Compiler List
Compiler list is updated based on the compilers submitted in upt and uptplus.
Step For updating
Run a script in Unix area
Press a button in Excel sheet which update compiler list
Select Technology either M40 or C28SOI
Select compiler & its version
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16. Implementation of Master Sheet
• It downloads the MCF
setup from Its DE product
SELECT COMPILER
& then its VERSION
• It will change the Ucdprod
& .Ucdprod
Give Path of New
Spice4Mem
• Update Measure.setup of
different compilerSELECT PVTS
Input from User
Purpose
of input
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17. Scripting Part
Copy mcf
setup in
given area
Update
mcf setup
Run the
simulation
Save
result in
excel
Collect
name of
error
setup
In scripting part I used Perl packages which is used to convert
excel file into text file and vice versa.
A hierarchy structure of setups is made by the scripting.
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18. Mcf simulation Output Hierarchy
Main
Setup
Compiler1
Spice1 Spice2
Compiler2
Spice1 Spice2
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19. Reporting Part
Reporting
Spice
comparison(compiler
name)
Diff &%diff
Path of error setup
Result.xls (Pivot
Table)
Raw data sheet
Pivot table
• It shows the difference and %difference in excel sheet w.r.t first spice which is
considered as reference spice.
• In second sheet it shows the path of the mcf setup in which there is error.
• In Pivot Table first it saves all results in one excel sheet
• Makes pivot table using this data
• Using pivot table we can compare between different compilers, spice and pvt.
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20. Master Sheet
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21. New Spice4Mem Path
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22. 22

23. Pivot Table Generation
On pressing button
“Generate Pivot table”
from Master Sheet it
automatically generates
the Raw data Sheet and
Pivot table
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24. GENERATING PIVOT TABLE
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25. Spice Comparison Sheet
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26. How to avoid Errors
1. The product may not run properly if there is an issue in the UPT or UPTplus areas.
2. If there is an error in the MCF simulations, the result cannot be obtained. In this case the user
will have to manually debug and identify the MCF error.
3. Please make sure that the path given in the memIA.xls sheet is the same as the path of the
current working directory.
4. As excel is opened in windows this path should be such as
‘sambadataMAT10anju_workTANVIMEMIA_PRODUCT’
5. However, the path for the new spice should be the same as it’s UNIX path eg.
‘/data/cmem6/WORK_TANVI/products/’
6. Please make sure that you do not have any pending or unused jobs before running the product
as then the results will not be dumped in an excel sheet.
7. Please delete the compiler and compiler.xls files before updating the compiler list again.
8. Delete or rename the old result.xlsx file before generating a new file.
9. Lastly, DON’T FORGET TO SAVE THE memIA.xls.
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