Proceedings of the 26th Annual International Symposium on Microarchitecture, 1993
This paper addresses a two-fold question: whether there is enough parallelism in numeric and non-... more This paper addresses a two-fold question: whether there is enough parallelism in numeric and non-numeric workloads, such as the SPEC92 benchmark suite, under ideal conditions, disregarding any re-source constraints and more importantly, whether a high ideal parallelism can be ...
Read-optimized columnar databases use differential updates to handle writes by maintaining a sepa... more Read-optimized columnar databases use differential updates to handle writes by maintaining a separate write-optimized delta partition which is periodically merged with the read-optimized and compressed main partition. This merge process introduces significant overheads and unacceptable downtimes in update intensive systems, aspiring to combine transactional and analytical workloads into one system. In the first part of the paper, we report data
Proceedings IEEE Conference on Computer Vision and Pattern Recognition. CVPR 2000 (Cat. No.PR00662), 2000
Abstract Content-based Image Retrieval (CBIR) involves retrieving images similar to an example qu... more Abstract Content-based Image Retrieval (CBIR) involves retrieving images similar to an example query image in terms of some features extracted from the image. However, inherent subjectivity in user perception of an image results in retrieved images that are largely irrelevant to the ...
Proceedings International Conference on Computer Design. VLSI in Computers and Processors, 1996
Trace driven simulation is a common technique for evaluating different machine design options. Si... more Trace driven simulation is a common technique for evaluating different machine design options. Since the computing resources needed for simulation depend on the size of the trace, it is not always practical to use the complete trace of an application for simulation. This paper proposes a new technique, profile-driven sampling, for obtaining a reduced trace that is representative of the
In this paper we describe parallelization of interior-point method (IPM) aimed at achieving high ... more In this paper we describe parallelization of interior-point method (IPM) aimed at achieving high scalability on large-scale chip- multiprocessors (CMPs). IPM is an important computational technique used to solve optimization problems in many areas of science, engineering and finance. IPM spends most of its computation time in a few sparse linear algebra kernels. While each of these kernels contains a
Recent advances in microprocessor design have given rise to new commodity architectures. One such... more Recent advances in microprocessor design have given rise to new commodity architectures. One such innovation is to place multiple cores on a single chip, called Chip Multiprocessing (CMP). Each core is an independent computational unit, allow- ing multiple processes to execute concurrently. A second re- cent architectural advancement is to allow multiple processes to compete for resources simultaneously on a
Data mining has become one of the most essential tools in diverse fields. The increases in data s... more Data mining has become one of the most essential tools in diverse fields. The increases in data sizes and algorithmic complexities require the computational power of chip to increase even further. In this paper, we present detailed characteristics from the hardware and software perspectives for a set of representative data mining programs. We first design MineBench, a benchmarking suite containing representative data mining applications from multiple categories including two classification, two association rule mining, and four clustering applications. We evaluate the MineBench applications on an 8-way Shared Memory Parallel (SMP) machine and analyze their important performance characteristics. During the evaluation, the input datasets and the number of processors used are varied to measure the scalability of the applications in our benchmark suite. We present the results based on characteristics such as scalability, I/O complexity, fraction of time spent in the OS mode, and communication/synchronization overheads. This information can aid designers of future systems as well as programmers of new data mining algorithms to achieve better system and algorithmic performance.
We prove the existence of monetary equilibrium in a finite horizon economy with production. We al... more We prove the existence of monetary equilibrium in a finite horizon economy with production. We also show that if agents expect the monetary authority to significantly decrease the supply of bank money available for short term loans in the future, then the economy will fall into a liquidity trap today.
Phthalic anhydride 1 was reacted with aromatic primary amines 2 in acetic acid at room temperatur... more Phthalic anhydride 1 was reacted with aromatic primary amines 2 in acetic acid at room temperature to yield mono acid mono amide derivatives 3. The latter were each transformed into the corresponding imides 4 by heating in the green solvent PEG-600 at 60°C high yields and in high purity in short reaction times involving a dehydrative ring closure. The above
Synthesis of 2-normisoprostol, methyl 6-(3-hydroxy-2-((E)-4-hydroxy-4-methyloct-1-enyl)-5-oxocycl... more Synthesis of 2-normisoprostol, methyl 6-(3-hydroxy-2-((E)-4-hydroxy-4-methyloct-1-enyl)-5-oxocyclopentyl)hexanoate (3), employing two-component coupling strategy based on 1,4-addition followed by DDQ-mediated triethyl silyl deprotection is reported. Desired key intermediates, methyl 6-(3-triethyl silyloxy-5-oxocyclopent-1-enyl)hexanoate (4) and (E)-1-(tributylstannyl)-4-methyloct-1-en-4-yloxy)triethylsilane (5), were prepared from commercially available cycloheptanone and propargyl bromide, and the intermediates were coupled to obtain 3 in a convergent approach.
Skip to Main Content. IEEE.org | IEEE Xplore Digital Library | IEEE Standards Association | Spect... more Skip to Main Content. IEEE.org | IEEE Xplore Digital Library | IEEE Standards Association | Spectrum Online | More IEEE Sites. IEEE Xplore Digital Library. Search Term(s). Advanced Search | Preferences | Search Tips. Browse. ...
Proceedings of the 26th Annual International Symposium on Microarchitecture, 1993
This paper addresses a two-fold question: whether there is enough parallelism in numeric and non-... more This paper addresses a two-fold question: whether there is enough parallelism in numeric and non-numeric workloads, such as the SPEC92 benchmark suite, under ideal conditions, disregarding any re-source constraints and more importantly, whether a high ideal parallelism can be ...
Read-optimized columnar databases use differential updates to handle writes by maintaining a sepa... more Read-optimized columnar databases use differential updates to handle writes by maintaining a separate write-optimized delta partition which is periodically merged with the read-optimized and compressed main partition. This merge process introduces significant overheads and unacceptable downtimes in update intensive systems, aspiring to combine transactional and analytical workloads into one system. In the first part of the paper, we report data
Proceedings IEEE Conference on Computer Vision and Pattern Recognition. CVPR 2000 (Cat. No.PR00662), 2000
Abstract Content-based Image Retrieval (CBIR) involves retrieving images similar to an example qu... more Abstract Content-based Image Retrieval (CBIR) involves retrieving images similar to an example query image in terms of some features extracted from the image. However, inherent subjectivity in user perception of an image results in retrieved images that are largely irrelevant to the ...
Proceedings International Conference on Computer Design. VLSI in Computers and Processors, 1996
Trace driven simulation is a common technique for evaluating different machine design options. Si... more Trace driven simulation is a common technique for evaluating different machine design options. Since the computing resources needed for simulation depend on the size of the trace, it is not always practical to use the complete trace of an application for simulation. This paper proposes a new technique, profile-driven sampling, for obtaining a reduced trace that is representative of the
In this paper we describe parallelization of interior-point method (IPM) aimed at achieving high ... more In this paper we describe parallelization of interior-point method (IPM) aimed at achieving high scalability on large-scale chip- multiprocessors (CMPs). IPM is an important computational technique used to solve optimization problems in many areas of science, engineering and finance. IPM spends most of its computation time in a few sparse linear algebra kernels. While each of these kernels contains a
Recent advances in microprocessor design have given rise to new commodity architectures. One such... more Recent advances in microprocessor design have given rise to new commodity architectures. One such innovation is to place multiple cores on a single chip, called Chip Multiprocessing (CMP). Each core is an independent computational unit, allow- ing multiple processes to execute concurrently. A second re- cent architectural advancement is to allow multiple processes to compete for resources simultaneously on a
Data mining has become one of the most essential tools in diverse fields. The increases in data s... more Data mining has become one of the most essential tools in diverse fields. The increases in data sizes and algorithmic complexities require the computational power of chip to increase even further. In this paper, we present detailed characteristics from the hardware and software perspectives for a set of representative data mining programs. We first design MineBench, a benchmarking suite containing representative data mining applications from multiple categories including two classification, two association rule mining, and four clustering applications. We evaluate the MineBench applications on an 8-way Shared Memory Parallel (SMP) machine and analyze their important performance characteristics. During the evaluation, the input datasets and the number of processors used are varied to measure the scalability of the applications in our benchmark suite. We present the results based on characteristics such as scalability, I/O complexity, fraction of time spent in the OS mode, and communication/synchronization overheads. This information can aid designers of future systems as well as programmers of new data mining algorithms to achieve better system and algorithmic performance.
We prove the existence of monetary equilibrium in a finite horizon economy with production. We al... more We prove the existence of monetary equilibrium in a finite horizon economy with production. We also show that if agents expect the monetary authority to significantly decrease the supply of bank money available for short term loans in the future, then the economy will fall into a liquidity trap today.
Phthalic anhydride 1 was reacted with aromatic primary amines 2 in acetic acid at room temperatur... more Phthalic anhydride 1 was reacted with aromatic primary amines 2 in acetic acid at room temperature to yield mono acid mono amide derivatives 3. The latter were each transformed into the corresponding imides 4 by heating in the green solvent PEG-600 at 60°C high yields and in high purity in short reaction times involving a dehydrative ring closure. The above
Synthesis of 2-normisoprostol, methyl 6-(3-hydroxy-2-((E)-4-hydroxy-4-methyloct-1-enyl)-5-oxocycl... more Synthesis of 2-normisoprostol, methyl 6-(3-hydroxy-2-((E)-4-hydroxy-4-methyloct-1-enyl)-5-oxocyclopentyl)hexanoate (3), employing two-component coupling strategy based on 1,4-addition followed by DDQ-mediated triethyl silyl deprotection is reported. Desired key intermediates, methyl 6-(3-triethyl silyloxy-5-oxocyclopent-1-enyl)hexanoate (4) and (E)-1-(tributylstannyl)-4-methyloct-1-en-4-yloxy)triethylsilane (5), were prepared from commercially available cycloheptanone and propargyl bromide, and the intermediates were coupled to obtain 3 in a convergent approach.
Skip to Main Content. IEEE.org | IEEE Xplore Digital Library | IEEE Standards Association | Spect... more Skip to Main Content. IEEE.org | IEEE Xplore Digital Library | IEEE Standards Association | Spectrum Online | More IEEE Sites. IEEE Xplore Digital Library. Search Term(s). Advanced Search | Preferences | Search Tips. Browse. ...
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Papers by Pradeep Dubey