From amin.ezhdehakosh at gmail.com Sun Jun 6 03:35:40 2010 From: amin.ezhdehakosh at gmail.com (Amin Ezhdehakosh) Date: Sun, 6 Jun 2010 00:35:40 -0700 Subject: [Hotspot] 3D Thermal Model Message-ID: Hi, I want to extract thermal model of 3D FPGAs in HotSpot, how should I change floorplan and power trace files? Could you please provide me some guides? -- Best Regards, Amin Ezhdehakosh -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.cs.virginia.edu/pipermail/hotspot/attachments/20100606/5c8e8d60/attachment.html From skadron at cs.virginia.edu Sun Jun 6 10:10:25 2010 From: skadron at cs.virginia.edu (Kevin Skadron) Date: Sun, 06 Jun 2010 10:10:25 -0400 Subject: [Hotspot] 3D Thermal Model In-Reply-To: References: Message-ID: <4C0BAC51.8060200@cs.virginia.edu> Hi Amin, You'll need to create a floorplan specification for each layer in the 3D stack, and don't forget to specify the spreader and sink. The power will need to come from an external power model, and you'll need power values for each active block in each layer. /K On 6/6/2010 3:35 AM, Amin Ezhdehakosh wrote: > Hi, > I want to extract thermal model of 3D FPGAs in HotSpot, how should I > change floorplan and power trace files? Could you please provide me some > guides? > > -- > Best Regards, > Amin Ezhdehakosh > > > > _______________________________________________ > HotSpot mailing list > HotSpot at mail.cs.virginia.edu > http://www.cs.virginia.edu/mailman/listinfo/hotspot -- Kevin Skadron Assoc. Professor of Computer Science, University of Virginia Please note that all statements are mine alone and do not represent the views of the institution From amin.ezhdehakosh at gmail.com Mon Jun 7 08:49:22 2010 From: amin.ezhdehakosh at gmail.com (Amin Ezhdehakosh) Date: Mon, 7 Jun 2010 17:19:22 +0430 Subject: [Hotspot] 3D thermal map Message-ID: Hi, I want to extract 3D stacked *thermal map*. Manual files don't contain such example. How can I do this? -- Best Regards, Amin Ezhdehakosh -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.cs.virginia.edu/pipermail/hotspot/attachments/20100607/a25a49cd/attachment.html From skadron at cs.virginia.edu Mon Jun 7 09:26:31 2010 From: skadron at cs.virginia.edu (Kevin Skadron) Date: Mon, 07 Jun 2010 09:26:31 -0400 Subject: [Hotspot] 3D thermal map In-Reply-To: References: Message-ID: <4C0CF387.4000904@cs.virginia.edu> The thermal map is obtained by running HotSpot with floorplan and power information and obtaining temperature in each block or cell. That is the thermal map. You can then plot this using a tool of your choice. For that, the Excel spreadsheet we provide may suffice. As I recall (Wei can confirm), all layers have to share the same floorplan, because HotSpot doesn't support overlapping blocks in different layers (which means you may have to factor some blocks into smaller units or use the grid mode). /K On 6/7/2010 8:49 AM, Amin Ezhdehakosh wrote: > Hi, > I want to extract 3D stacked _thermal map_. Manual files don't contain > such example. How can I do this? > > -- > Best Regards, > Amin Ezhdehakosh > > > > _______________________________________________ > HotSpot mailing list > HotSpot at mail.cs.virginia.edu > http://www.cs.virginia.edu/mailman/listinfo/hotspot -- Kevin Skadron Assoc. Professor of Computer Science, University of Virginia Please note that all statements are mine alone and do not represent the views of the institution From wh6p at virginia.edu Mon Jun 7 10:24:32 2010 From: wh6p at virginia.edu (Wei Huang) Date: Mon, 7 Jun 2010 09:24:32 -0500 Subject: [Hotspot] 3D thermal map In-Reply-To: <4C0CF387.4000904@cs.virginia.edu> References: <4C0CF387.4000904@cs.virginia.edu> Message-ID: Amin, In 3d config for HotSpot, all silicon layers must have an identical size. The floorplans can be different, but you can only use the grid mode. HotSpots reports temperatures in all layers in raw data. If you want to extract the visual thermal maps for each silicon layer, you can modify the example perl script that produces a thermal map for a 2D chip (i.e. on silicon layer only) Hope this helps. -Wei On Mon, Jun 7, 2010 at 8:26 AM, Kevin Skadron wrote: > The thermal map is obtained by running HotSpot with floorplan and power > information and obtaining temperature in each block or cell. That is > the thermal map. You can then plot this using a tool of your choice. > For that, the Excel spreadsheet we provide may suffice. > > As I recall (Wei can confirm), all layers have to share the same > floorplan, because HotSpot doesn't support overlapping blocks in > different layers (which means you may have to factor some blocks into > smaller units or use the grid mode). > > /K > > On 6/7/2010 8:49 AM, Amin Ezhdehakosh wrote: > > Hi, > > I want to extract 3D stacked _thermal map_. Manual files don't contain > > such example. How can I do this? > > > > -- > > Best Regards, > > Amin Ezhdehakosh > > > > > > > > _______________________________________________ > > HotSpot mailing list > > HotSpot at mail.cs.virginia.edu > > http://www.cs.virginia.edu/mailman/listinfo/hotspot > > -- > Kevin Skadron > Assoc. Professor of Computer Science, University of Virginia > Please note that all statements are mine alone and do not represent the > views of the institution > _______________________________________________ > HotSpot mailing list > HotSpot at mail.cs.virginia.edu > http://www.cs.virginia.edu/mailman/listinfo/hotspot > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.cs.virginia.edu/pipermail/hotspot/attachments/20100607/d1174782/attachment.html From bswu at yard.ee.nthu.edu.tw Tue Jun 8 09:59:43 2010 From: bswu at yard.ee.nthu.edu.tw (Bing-Shiou Wu) Date: Tue, 8 Jun 2010 21:59:43 +0800 Subject: [Hotspot] Temperature gradient problem Message-ID: <20100608135943.M21612@larc.ee.nthu.edu.tw> Hi, I had ran the grid mode simulation for 3D IC thermal analysis, but the temperature gradient in active layers was not obvious. The temperature in active layers indeed rose but the difference beteen maximum and minimum temperature was less than 1K . However, I had used the same floorplan of active layers for 2D IC thermal analysis and the temperature gradient was obvios. I didn't know how to solve this problem. Can someone help me? Thanks. From wh6p at virginia.edu Tue Jun 8 19:04:29 2010 From: wh6p at virginia.edu (Wei Huang) Date: Tue, 8 Jun 2010 18:04:29 -0500 Subject: [Hotspot] Temperature gradient problem In-Reply-To: <20100608135943.M21612@larc.ee.nthu.edu.tw> References: <20100608135943.M21612@larc.ee.nthu.edu.tw> Message-ID: Hi. Are you using two identical floorplans for the 3D case, or dividing the 2D floorplan into two floorplans for 3D? Also, it would be helpful to provide the floorplan, power, config. lcf files for a more detailed answer to your question. -Wei On Tue, Jun 8, 2010 at 8:59 AM, Bing-Shiou Wu wrote: > Hi, > I had ran the grid mode simulation for 3D IC thermal analysis, but the > temperature gradient in active layers was not obvious. The temperature in > active layers indeed rose but the difference beteen maximum and minimum > temperature was less than 1K . However, I had used the same floorplan of > active layers for 2D IC thermal analysis and the temperature gradient was > obvios. I didn't know how to solve this problem. Can someone help me? > Thanks. > _______________________________________________ > HotSpot mailing list > HotSpot at mail.cs.virginia.edu > http://www.cs.virginia.edu/mailman/listinfo/hotspot > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.cs.virginia.edu/pipermail/hotspot/attachments/20100608/0d59e65a/attachment.html From lixincas at 126.com Mon Jun 14 06:23:19 2010 From: lixincas at 126.com (lixin) Date: Mon, 14 Jun 2010 18:23:19 +0800 Subject: [Hotspot] the floorplan and average power for UltraSPARC T1 Message-ID: <201006141823185155016@126.com> Hello every one, I?m trying to integrate Hotspot tool into my program to test several temperature-aware scheduling algorithms for MPSoCs. Who knows the data about UltraSPARC T1? Please help me to check the floor plan file and the power of each unit? Now a floor plan file (see attachment) is created for the processor UltraSPARC T1 according to some publicly available data published in the paper ?A Power-Efficient High-Throughput 32-Thread SPARC Processor?. Average power consumptions of every block in the processor in active, idle or sleep states are also guessed. But I?m not sure whether the floor plan and average power of each block are correct or not. My questions are listed as the following: 1. Are the parameters (including position, height and width) accurate? 2. What is average power of each block in active, idle or sleep states respectively? 3. I know that the powers of each block consumed in different applications are not the same. But I want to use average power for a general application and create a ptrace file using average power. Is this reasonable? Thanks for your kind attention. I look forward to your reply. Xin LI Embedded System Group, School of Computer Science and Technology, Shandong University Middle of Shunhua Road, High-tech Development Zone, Ji'nan, P.R. China ,250101 Mobile: +86-13853123559 -------------- next part -------------- A non-text attachment was scrubbed... Name: UltraSparcT1 Floorplan.pdf Type: application/octet-stream Size: 28123 bytes Desc: not available Url : http://www.cs.virginia.edu/pipermail/hotspot/attachments/20100614/7f9f5f1f/attachment-0001.obj From arunx003 at umn.edu Mon Jun 14 09:20:19 2010 From: arunx003 at umn.edu (arunx003 at umn.edu) Date: 14 Jun 2010 08:20:19 -0500 Subject: [Hotspot] Trouble in Installing HotSpot 5.0 in Unix Message-ID: Hi, I am compiling Hotspot 5.0 with the steps given in the HOWTO. Steps which I am following are: 1. gunzip HotSpot-.5.0.tar.gz 2. tar -xvf HotSpot-.5.0.tar 3. make 4. make clean But when I type hotspot on the terminal to run this command hotspot -c hotspot.config -f ev6.flp -p gcc.ptrace \ -o gcc.ttrace -steady_file gcc.steady I get a message telling command not found. Please tell me what is wrong in my installation. Thanks, Abhishek From arunx003 at umn.edu Mon Jun 14 10:27:02 2010 From: arunx003 at umn.edu (arunx003 at umn.edu) Date: 14 Jun 2010 09:27:02 -0500 Subject: [Hotspot] Trouble in Installing HotSpot 5.0 in Unix In-Reply-To: <21406019.921276525069444.JavaMail.bernauer@lava> References: <21406019.921276525069444.JavaMail.bernauer@lava> Message-ID: Actually tried that already. Didn't work for me. Is everything Ok with my installation steps for Ubuntu ? Thanks, Abhishek Maybe you must say './hotspot ...' (note 'dot' 'slash' before the hotspot command)? On Jun 14 2010, Andreas Bernauer wrote: > >----- arunx003 at umn.edu wrote: > >> Hi, >> >> I am compiling Hotspot 5.0 with the steps given in the HOWTO. >> Steps which I am following are: >> >> 1. gunzip HotSpot-.5.0.tar.gz >> 2. tar -xvf HotSpot-.5.0.tar >> 3. make >> 4. make clean >> >> But when I type hotspot on the terminal to run this command >> hotspot -c hotspot.config -f ev6.flp -p gcc.ptrace \ >> -o gcc.ttrace -steady_file gcc.steady >> >> I get a message telling command not found. Please tell me what is >> wrong in >> my installation. > > Maybe you must say './hotspot ...' (note 'dot' 'slash' before the hotspot > command)? > > From bernauer at informatik.uni-tuebingen.de Mon Jun 14 10:17:51 2010 From: bernauer at informatik.uni-tuebingen.de (Andreas Bernauer) Date: Mon, 14 Jun 2010 16:17:51 +0200 (CEST) Subject: [Hotspot] Trouble in Installing HotSpot 5.0 in Unix In-Reply-To: Message-ID: <21406019.921276525069444.JavaMail.bernauer@lava> ----- arunx003 at umn.edu wrote: > Hi, > > I am compiling Hotspot 5.0 with the steps given in the HOWTO. > Steps which I am following are: > > 1. gunzip HotSpot-.5.0.tar.gz > 2. tar -xvf HotSpot-.5.0.tar > 3. make > 4. make clean > > But when I type hotspot on the terminal to run this command > hotspot -c hotspot.config -f ev6.flp -p gcc.ptrace \ > -o gcc.ttrace -steady_file gcc.steady > > I get a message telling command not found. Please tell me what is > wrong in > my installation. Maybe you must say './hotspot ...' (note 'dot' 'slash' before the hotspot command)? -- Andreas Bernauer WSI/TI, Sand 13, B202, 72076 T?bingen, +49 70 71 29 75 940 http://www.ti.uni-tuebingen.de/?id=Andreas_Bernauer From wh6p at virginia.edu Mon Jun 14 19:22:17 2010 From: wh6p at virginia.edu (Wei Huang) Date: Mon, 14 Jun 2010 18:22:17 -0500 Subject: [Hotspot] Trouble in Installing HotSpot 5.0 in Unix In-Reply-To: References: <21406019.921276525069444.JavaMail.bernauer@lava> Message-ID: Hi doublecheck "make clean" doesn't also remove the executable generated in "make". try without "make clean" -Wei On Mon, Jun 14, 2010 at 9:27 AM, wrote: > Actually tried that already. Didn't work for me. Is everything Ok with my > installation steps for Ubuntu ? > > Thanks, > Abhishek > > > Maybe you must say './hotspot ...' (note 'dot' 'slash' before the hotspot > command)? > > On Jun 14 2010, Andreas Bernauer wrote: > > > > >----- arunx003 at umn.edu wrote: > > > >> Hi, > >> > >> I am compiling Hotspot 5.0 with the steps given in the HOWTO. > >> Steps which I am following are: > >> > >> 1. gunzip HotSpot-.5.0.tar.gz > >> 2. tar -xvf HotSpot-.5.0.tar > >> 3. make > >> 4. make clean > >> > >> But when I type hotspot on the terminal to run this command > >> hotspot -c hotspot.config -f ev6.flp -p gcc.ptrace \ > >> -o gcc.ttrace -steady_file gcc.steady > >> > >> I get a message telling command not found. Please tell me what is > >> wrong in > >> my installation. > > > > Maybe you must say './hotspot ...' (note 'dot' 'slash' before the hotspot > > command)? > > > > > _______________________________________________ > HotSpot mailing list > HotSpot at mail.cs.virginia.edu > http://www.cs.virginia.edu/mailman/listinfo/hotspot > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.cs.virginia.edu/pipermail/hotspot/attachments/20100614/dd352a92/attachment.html From arunx003 at umn.edu Mon Jun 14 22:17:30 2010 From: arunx003 at umn.edu (arunx003 at umn.edu) Date: 14 Jun 2010 21:17:30 -0500 Subject: [Hotspot] Trouble in Installing HotSpot 5.0 in Unix In-Reply-To: References: <21406019.921276525069444.JavaMail.bernauer@lava> Message-ID: Thanks Wei, It is working now using make clean. Something was wrong with the path earlier. Thanks for all your help. Regards, Abhishek On Jun 14 2010, Wei Huang wrote: >Hi > >doublecheck "make clean" doesn't also remove the executable generated in >"make". >try without "make clean" > >-Wei > >On Mon, Jun 14, 2010 at 9:27 AM, wrote: > >> Actually tried that already. Didn't work for me. Is everything Ok with my >> installation steps for Ubuntu ? >> >> Thanks, >> Abhishek >> >> >> Maybe you must say './hotspot ...' (note 'dot' 'slash' before the >> hotspot >> command)? >> >> On Jun 14 2010, Andreas Bernauer wrote: >> >> > >> >----- arunx003 at umn.edu wrote: >> > >> >> Hi, >> >> >> >> I am compiling Hotspot 5.0 with the steps given in the HOWTO. >> >> Steps which I am following are: >> >> >> >> 1. gunzip HotSpot-.5.0.tar.gz >> >> 2. tar -xvf HotSpot-.5.0.tar >> >> 3. make >> >> 4. make clean >> >> >> >> But when I type hotspot on the terminal to run this command >> >> hotspot -c hotspot.config -f ev6.flp -p gcc.ptrace \ >> >> -o gcc.ttrace -steady_file gcc.steady >> >> >> >> I get a message telling command not found. Please tell me what is >> >> wrong in >> >> my installation. >> > >> > Maybe you must say './hotspot ...' (note 'dot' 'slash' before the >> > hotspot >> > command)? >> > >> > >> _______________________________________________ >> HotSpot mailing list >> HotSpot at mail.cs.virginia.edu >> http://www.cs.virginia.edu/mailman/listinfo/hotspot >> > From amin.ezhdehakosh at gmail.com Tue Jun 15 05:28:06 2010 From: amin.ezhdehakosh at gmail.com (Amin Ezhdehakosh) Date: Tue, 15 Jun 2010 13:58:06 +0430 Subject: [Hotspot] 3D thermal model Message-ID: Hi, For 3D stacked thermal model in HotSpot, are the thermal effects of vertical adjacent blocks in silicon layers considered in 3D stacked thermal model? (Each silicon layer modelled dependant on other silicon layers or independently?) -- Best Regards, Amin Ezhdehakosh -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.cs.virginia.edu/pipermail/hotspot/attachments/20100615/37fac5bd/attachment.html From skadron at cs.virginia.edu Tue Jun 15 09:59:57 2010 From: skadron at cs.virginia.edu (Kevin Skadron) Date: Tue, 15 Jun 2010 09:59:57 -0400 Subject: [Hotspot] 3D thermal model In-Reply-To: References: Message-ID: <4C17875D.80308@cs.virginia.edu> Yes, thermal interaction between layers is modeled. The model includes thermal resistance between each block in each layer, and a thermal capacitance for each block in each layer. /K On 6/15/2010 5:28 AM, Amin Ezhdehakosh wrote: > Hi, > For 3D stacked thermal model in HotSpot, are the thermal effects of > vertical adjacent blocks in silicon layers considered in 3D stacked > thermal model? (Each silicon layer modelled dependant on other silicon > layers or independently?) > > -- > Best Regards, > Amin Ezhdehakosh > > > > _______________________________________________ > HotSpot mailing list > HotSpot at mail.cs.virginia.edu > http://www.cs.virginia.edu/mailman/listinfo/hotspot -- Kevin Skadron Assoc. Professor of Computer Science, University of Virginia Please note that all statements are mine alone and do not represent the views of the institution From wh6p at virginia.edu Tue Jun 15 10:31:08 2010 From: wh6p at virginia.edu (Wei Huang) Date: Tue, 15 Jun 2010 09:31:08 -0500 Subject: [Hotspot] Power Trace - Reg In-Reply-To: <46996.10.3.100.148.1276579609.squirrel@webmail.iitkgp.ac.in> References: <46996.10.3.100.148.1276579609.squirrel@webmail.iitkgp.ac.in> Message-ID: What you described seems right. hotspot.config needs to be updated with your own particular settings. Since thermal response is quite slow, you might also want to consider summing up several of the 100*t intervals to reduce simulation time. -Wei On Tue, Jun 15, 2010 at 12:26 AM, Krishna Kumar S wrote: > Dear Prof, > Though I have read the related threads in archive, still have a few > points to get clarified. > > Consider I have a circuit with critical freq X MHz and has 200 blocks(say > gates). I have a vector set of 100. I do the power calculation as follows. > > I assume the vectors are applied at a time interval t=(1/(critical freq). > I sum up the energy dissipated by each of 200 blocks over 100 vectors say > Si, i = 1 to 200. So power trace will have an entry corresponding to each > of these 200 blocks and will be numerically equal to (Si/(t*100). Is this > the input I feed as power trace to Hotspot? > > From the archive I read about 10000 cycle of simulation and processor > speed. > > What should be the processor speed in the case elaborated above? Should > the hotspot.config be updated with that value? > > -- > Research Scholar > Dept of E & ECE > Indian Institute of Technology, Kharagpur > Kharagpur, West Bengal. 721302 > > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.cs.virginia.edu/pipermail/hotspot/attachments/20100615/be461a10/attachment.html From wh6p at virginia.edu Tue Jun 15 10:41:57 2010 From: wh6p at virginia.edu (Wei Huang) Date: Tue, 15 Jun 2010 09:41:57 -0500 Subject: [Hotspot] the floorplan and average power for UltraSPARC T1 In-Reply-To: <201006141823185155016@126.com> References: <201006141823185155016@126.com> Message-ID: Hi, It is generally hard to gather detailed information for each on-chip unit's power consumption -- it is either confidential to the chip vendor or not available at all. Using published data should be good enough for research purposes. Same applies to the floorplan as well. Specific to the floorplan file, please make sure there is no white spaces or overlapped areas in the file, HotSpot doesn't accept those. -Wei 2010/6/14 lixin > Hello every one, > I?m trying to integrate Hotspot tool into my program to test several > temperature-aware scheduling algorithms for MPSoCs. > Who knows the data about UltraSPARC T1? Please help me to check the floor > plan file and the power of each unit? > Now a floor plan file (see attachment) is created for the processor > UltraSPARC T1 according to some publicly available data > published in the paper ?A Power-Efficient High-Throughput 32-Thread SPARC > Processor?. Average power consumptions of every block in the processor in > active, idle or sleep states are also guessed. But I?m not sure whether the > floor plan and average power of each block are correct or not. > > My questions are listed as the following: > 1. Are the parameters (including position, height and width) accurate? > 2. What is average power of each block in active, idle or sleep states > respectively? > 3. I know that the powers of each block consumed in different applications > are not the same. > But I want to use average power for a general application and create a > ptrace file using average power. > Is this reasonable? > > Thanks for your kind attention. > I look forward to your reply. > > Xin LI > Embedded System Group, > School of Computer Science and Technology, Shandong University > Middle of Shunhua Road, High-tech Development Zone, Ji'nan, P.R. China > ,250101 > Mobile: +86-13853123559 > > > _______________________________________________ > HotSpot mailing list > HotSpot at mail.cs.virginia.edu > http://www.cs.virginia.edu/mailman/listinfo/hotspot > > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.cs.virginia.edu/pipermail/hotspot/attachments/20100615/3a0c58b0/attachment.html From devendra.rai at tik.ee.ethz.ch Wed Jun 23 05:56:04 2010 From: devendra.rai at tik.ee.ethz.ch (Devendra Rai) Date: Wed, 23 Jun 2010 11:56:04 +0200 Subject: [Hotspot] error: no units specified in the floorplan file Message-ID: Hello HotSpot, I just downloaded hotspot and tried running some dummy tests. I am on Linux. I do: ./hotspot -f example.lcf -p example.ptrace -o outputtemp.txt where all the files except the output file is provided with the package (v. 5.0). I get the following error: error: no units specified in the floorplan file Can someone tell me what else is required? Getting this step to work will help me design my own experiments later on. Thanks Devendra -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.cs.virginia.edu/pipermail/hotspot/attachments/20100623/7d5451cc/attachment.html -------------- next part -------------- A non-text attachment was scrubbed... Name: example.flp Type: application/octet-stream Size: 300 bytes Desc: not available Url : http://www.cs.virginia.edu/pipermail/hotspot/attachments/20100623/7d5451cc/attachment.obj -------------- next part -------------- A non-text attachment was scrubbed... Name: example.lcf Type: application/octet-stream Size: 596 bytes Desc: not available Url : http://www.cs.virginia.edu/pipermail/hotspot/attachments/20100623/7d5451cc/attachment-0001.obj -------------- next part -------------- A non-text attachment was scrubbed... Name: example.ptrace Type: application/octet-stream Size: 353 bytes Desc: not available Url : http://www.cs.virginia.edu/pipermail/hotspot/attachments/20100623/7d5451cc/attachment-0002.obj From wh6p at virginia.edu Wed Jun 23 14:26:24 2010 From: wh6p at virginia.edu (Wei Huang) Date: Wed, 23 Jun 2010 13:26:24 -0500 Subject: [Hotspot] error: no units specified in the floorplan file In-Reply-To: References: Message-ID: On Wed, Jun 23, 2010 at 4:56 AM, Devendra Rai wrote: > Hello HotSpot, > > I just downloaded hotspot and tried running some dummy tests. I am on > Linux. > > I do: > > ./hotspot -f example.lcf -p example.ptrace -o outputtemp.txt > -f option should be followed by a .flp file. lcf file is the layer configuration file for 3D chips. -Wei -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.cs.virginia.edu/pipermail/hotspot/attachments/20100623/c0c886ce/attachment.html