SlideShare ist ein Scribd-Unternehmen logo
1 von 1
Downloaden Sie, um offline zu lesen
14 copies of a code module are to be executed in parallel on identical processors organized into
two communicating clusters, A and B. Cluster A contains 16 processors and cluster B contains
32 processors. Code modules run on one processor at a time.
a. How many different sets of processors can be used if cluster A has 3 failed processors and
cluster B has 2 failed processors?
b. How many different sets of processors can be used if all modules are to be executed either on
cluster A or on cluster B? (This question is separate from a.)

Weitere ähnliche Inhalte

Mehr von allwayscollection

15. A principios de 2021, Waterway Industries hab�a retenido gananci.pdf
15. A principios de 2021, Waterway Industries hab�a retenido gananci.pdf15. A principios de 2021, Waterway Industries hab�a retenido gananci.pdf
15. A principios de 2021, Waterway Industries hab�a retenido gananci.pdfallwayscollection
 
142 Cranlal Nerwe Jumetion.pdf
142 Cranlal Nerwe Jumetion.pdf142 Cranlal Nerwe Jumetion.pdf
142 Cranlal Nerwe Jumetion.pdfallwayscollection
 
14. Essay Using the following information f�Using the followi.pdf
14. Essay Using the following information f�Using the followi.pdf14. Essay Using the following information f�Using the followi.pdf
14. Essay Using the following information f�Using the followi.pdfallwayscollection
 
14. Mary es una maestra de secundaria jubilada de 72 a�os. Ella in.pdf
14. Mary es una maestra de secundaria jubilada de 72 a�os. Ella in.pdf14. Mary es una maestra de secundaria jubilada de 72 a�os. Ella in.pdf
14. Mary es una maestra de secundaria jubilada de 72 a�os. Ella in.pdfallwayscollection
 
13. Alan, Bruce and Connie want to combine their property in a new c.pdf
13. Alan, Bruce and Connie want to combine their property in a new c.pdf13. Alan, Bruce and Connie want to combine their property in a new c.pdf
13. Alan, Bruce and Connie want to combine their property in a new c.pdfallwayscollection
 
13. La revisi�n judicial de las decisiones de las agencias gira en t.pdf
13. La revisi�n judicial de las decisiones de las agencias gira en t.pdf13. La revisi�n judicial de las decisiones de las agencias gira en t.pdf
13. La revisi�n judicial de las decisiones de las agencias gira en t.pdfallwayscollection
 
13. It is year 1225 and Easter Islanders are crafting their now well.pdf
13. It is year 1225 and Easter Islanders are crafting their now well.pdf13. It is year 1225 and Easter Islanders are crafting their now well.pdf
13. It is year 1225 and Easter Islanders are crafting their now well.pdfallwayscollection
 
20) The antibiotic penicillin is isolated from ________.A) B. subt.pdf
20) The antibiotic penicillin is isolated from ________.A) B. subt.pdf20) The antibiotic penicillin is isolated from ________.A) B. subt.pdf
20) The antibiotic penicillin is isolated from ________.A) B. subt.pdfallwayscollection
 
2.1 Estudio de caso un l�der emergente Tim T. retrata su vida com.pdf
2.1 Estudio de caso un l�der emergente Tim T. retrata su vida com.pdf2.1 Estudio de caso un l�der emergente Tim T. retrata su vida com.pdf
2.1 Estudio de caso un l�der emergente Tim T. retrata su vida com.pdfallwayscollection
 
2.4 CollaboratorsThe company should also understand the relationsh.pdf
2.4 CollaboratorsThe company should also understand the relationsh.pdf2.4 CollaboratorsThe company should also understand the relationsh.pdf
2.4 CollaboratorsThe company should also understand the relationsh.pdfallwayscollection
 
2. �Cu�l de los siguientes no es un rasgo de alta inteligencia cultu.pdf
2. �Cu�l de los siguientes no es un rasgo de alta inteligencia cultu.pdf2. �Cu�l de los siguientes no es un rasgo de alta inteligencia cultu.pdf
2. �Cu�l de los siguientes no es un rasgo de alta inteligencia cultu.pdfallwayscollection
 
2. Write a Python program to remove characters that have odd index v.pdf
2. Write a Python program to remove characters that have odd index v.pdf2. Write a Python program to remove characters that have odd index v.pdf
2. Write a Python program to remove characters that have odd index v.pdfallwayscollection
 
2. Use uno de los enfoques de generaci�n de ideas presentados en est.pdf
2. Use uno de los enfoques de generaci�n de ideas presentados en est.pdf2. Use uno de los enfoques de generaci�n de ideas presentados en est.pdf
2. Use uno de los enfoques de generaci�n de ideas presentados en est.pdfallwayscollection
 
2. Section 2. Implementing functionality in the PersonEntry. (1.5 ma.pdf
2. Section 2. Implementing functionality in the PersonEntry. (1.5 ma.pdf2. Section 2. Implementing functionality in the PersonEntry. (1.5 ma.pdf
2. Section 2. Implementing functionality in the PersonEntry. (1.5 ma.pdfallwayscollection
 
2. Riesgo de los empleados a. �C�mo podr�a ayudar a una organizaci.pdf
2. Riesgo de los empleados a. �C�mo podr�a ayudar a una organizaci.pdf2. Riesgo de los empleados a. �C�mo podr�a ayudar a una organizaci.pdf
2. Riesgo de los empleados a. �C�mo podr�a ayudar a una organizaci.pdfallwayscollection
 
2. Pollutant transport i) Which stability criterion is lessening and.pdf
2. Pollutant transport i) Which stability criterion is lessening and.pdf2. Pollutant transport i) Which stability criterion is lessening and.pdf
2. Pollutant transport i) Which stability criterion is lessening and.pdfallwayscollection
 
2. Numerous historical and recent events provide examples of leaders.pdf
2. Numerous historical and recent events provide examples of leaders.pdf2. Numerous historical and recent events provide examples of leaders.pdf
2. Numerous historical and recent events provide examples of leaders.pdfallwayscollection
 
2. Explain how charisma can produce both positive and negative outc.pdf
2.  Explain how charisma can produce both positive and negative outc.pdf2.  Explain how charisma can produce both positive and negative outc.pdf
2. Explain how charisma can produce both positive and negative outc.pdfallwayscollection
 
2. IQ scores have a mean of 100 and a standard deviation of 16. Albe.pdf
2. IQ scores have a mean of 100 and a standard deviation of 16. Albe.pdf2. IQ scores have a mean of 100 and a standard deviation of 16. Albe.pdf
2. IQ scores have a mean of 100 and a standard deviation of 16. Albe.pdfallwayscollection
 

Mehr von allwayscollection (20)

15. A principios de 2021, Waterway Industries hab�a retenido gananci.pdf
15. A principios de 2021, Waterway Industries hab�a retenido gananci.pdf15. A principios de 2021, Waterway Industries hab�a retenido gananci.pdf
15. A principios de 2021, Waterway Industries hab�a retenido gananci.pdf
 
142 Cranlal Nerwe Jumetion.pdf
142 Cranlal Nerwe Jumetion.pdf142 Cranlal Nerwe Jumetion.pdf
142 Cranlal Nerwe Jumetion.pdf
 
14. Essay Using the following information f�Using the followi.pdf
14. Essay Using the following information f�Using the followi.pdf14. Essay Using the following information f�Using the followi.pdf
14. Essay Using the following information f�Using the followi.pdf
 
14. Mary es una maestra de secundaria jubilada de 72 a�os. Ella in.pdf
14. Mary es una maestra de secundaria jubilada de 72 a�os. Ella in.pdf14. Mary es una maestra de secundaria jubilada de 72 a�os. Ella in.pdf
14. Mary es una maestra de secundaria jubilada de 72 a�os. Ella in.pdf
 
13. Alan, Bruce and Connie want to combine their property in a new c.pdf
13. Alan, Bruce and Connie want to combine their property in a new c.pdf13. Alan, Bruce and Connie want to combine their property in a new c.pdf
13. Alan, Bruce and Connie want to combine their property in a new c.pdf
 
13. La revisi�n judicial de las decisiones de las agencias gira en t.pdf
13. La revisi�n judicial de las decisiones de las agencias gira en t.pdf13. La revisi�n judicial de las decisiones de las agencias gira en t.pdf
13. La revisi�n judicial de las decisiones de las agencias gira en t.pdf
 
13. It is year 1225 and Easter Islanders are crafting their now well.pdf
13. It is year 1225 and Easter Islanders are crafting their now well.pdf13. It is year 1225 and Easter Islanders are crafting their now well.pdf
13. It is year 1225 and Easter Islanders are crafting their now well.pdf
 
20) The antibiotic penicillin is isolated from ________.A) B. subt.pdf
20) The antibiotic penicillin is isolated from ________.A) B. subt.pdf20) The antibiotic penicillin is isolated from ________.A) B. subt.pdf
20) The antibiotic penicillin is isolated from ________.A) B. subt.pdf
 
2.1 Estudio de caso un l�der emergente Tim T. retrata su vida com.pdf
2.1 Estudio de caso un l�der emergente Tim T. retrata su vida com.pdf2.1 Estudio de caso un l�der emergente Tim T. retrata su vida com.pdf
2.1 Estudio de caso un l�der emergente Tim T. retrata su vida com.pdf
 
2.4 CollaboratorsThe company should also understand the relationsh.pdf
2.4 CollaboratorsThe company should also understand the relationsh.pdf2.4 CollaboratorsThe company should also understand the relationsh.pdf
2.4 CollaboratorsThe company should also understand the relationsh.pdf
 
2.5�108 concentration.pdf
2.5�108 concentration.pdf2.5�108 concentration.pdf
2.5�108 concentration.pdf
 
2. �Cu�l de los siguientes no es un rasgo de alta inteligencia cultu.pdf
2. �Cu�l de los siguientes no es un rasgo de alta inteligencia cultu.pdf2. �Cu�l de los siguientes no es un rasgo de alta inteligencia cultu.pdf
2. �Cu�l de los siguientes no es un rasgo de alta inteligencia cultu.pdf
 
2. Write a Python program to remove characters that have odd index v.pdf
2. Write a Python program to remove characters that have odd index v.pdf2. Write a Python program to remove characters that have odd index v.pdf
2. Write a Python program to remove characters that have odd index v.pdf
 
2. Use uno de los enfoques de generaci�n de ideas presentados en est.pdf
2. Use uno de los enfoques de generaci�n de ideas presentados en est.pdf2. Use uno de los enfoques de generaci�n de ideas presentados en est.pdf
2. Use uno de los enfoques de generaci�n de ideas presentados en est.pdf
 
2. Section 2. Implementing functionality in the PersonEntry. (1.5 ma.pdf
2. Section 2. Implementing functionality in the PersonEntry. (1.5 ma.pdf2. Section 2. Implementing functionality in the PersonEntry. (1.5 ma.pdf
2. Section 2. Implementing functionality in the PersonEntry. (1.5 ma.pdf
 
2. Riesgo de los empleados a. �C�mo podr�a ayudar a una organizaci.pdf
2. Riesgo de los empleados a. �C�mo podr�a ayudar a una organizaci.pdf2. Riesgo de los empleados a. �C�mo podr�a ayudar a una organizaci.pdf
2. Riesgo de los empleados a. �C�mo podr�a ayudar a una organizaci.pdf
 
2. Pollutant transport i) Which stability criterion is lessening and.pdf
2. Pollutant transport i) Which stability criterion is lessening and.pdf2. Pollutant transport i) Which stability criterion is lessening and.pdf
2. Pollutant transport i) Which stability criterion is lessening and.pdf
 
2. Numerous historical and recent events provide examples of leaders.pdf
2. Numerous historical and recent events provide examples of leaders.pdf2. Numerous historical and recent events provide examples of leaders.pdf
2. Numerous historical and recent events provide examples of leaders.pdf
 
2. Explain how charisma can produce both positive and negative outc.pdf
2.  Explain how charisma can produce both positive and negative outc.pdf2.  Explain how charisma can produce both positive and negative outc.pdf
2. Explain how charisma can produce both positive and negative outc.pdf
 
2. IQ scores have a mean of 100 and a standard deviation of 16. Albe.pdf
2. IQ scores have a mean of 100 and a standard deviation of 16. Albe.pdf2. IQ scores have a mean of 100 and a standard deviation of 16. Albe.pdf
2. IQ scores have a mean of 100 and a standard deviation of 16. Albe.pdf
 

Kürzlich hochgeladen

USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...
USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...
USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...Postal Advocate Inc.
 
What is Model Inheritance in Odoo 17 ERP
What is Model Inheritance in Odoo 17 ERPWhat is Model Inheritance in Odoo 17 ERP
What is Model Inheritance in Odoo 17 ERPCeline George
 
Roles & Responsibilities in Pharmacovigilance
Roles & Responsibilities in PharmacovigilanceRoles & Responsibilities in Pharmacovigilance
Roles & Responsibilities in PharmacovigilanceSamikshaHamane
 
Keynote by Prof. Wurzer at Nordex about IP-design
Keynote by Prof. Wurzer at Nordex about IP-designKeynote by Prof. Wurzer at Nordex about IP-design
Keynote by Prof. Wurzer at Nordex about IP-designMIPLM
 
THEORIES OF ORGANIZATION-PUBLIC ADMINISTRATION
THEORIES OF ORGANIZATION-PUBLIC ADMINISTRATIONTHEORIES OF ORGANIZATION-PUBLIC ADMINISTRATION
THEORIES OF ORGANIZATION-PUBLIC ADMINISTRATIONHumphrey A Beña
 
Grade 9 Q4-MELC1-Active and Passive Voice.pptx
Grade 9 Q4-MELC1-Active and Passive Voice.pptxGrade 9 Q4-MELC1-Active and Passive Voice.pptx
Grade 9 Q4-MELC1-Active and Passive Voice.pptxChelloAnnAsuncion2
 
Gas measurement O2,Co2,& ph) 04/2024.pptx
Gas measurement O2,Co2,& ph) 04/2024.pptxGas measurement O2,Co2,& ph) 04/2024.pptx
Gas measurement O2,Co2,& ph) 04/2024.pptxDr.Ibrahim Hassaan
 
Incoming and Outgoing Shipments in 3 STEPS Using Odoo 17
Incoming and Outgoing Shipments in 3 STEPS Using Odoo 17Incoming and Outgoing Shipments in 3 STEPS Using Odoo 17
Incoming and Outgoing Shipments in 3 STEPS Using Odoo 17Celine George
 
Choosing the Right CBSE School A Comprehensive Guide for Parents
Choosing the Right CBSE School A Comprehensive Guide for ParentsChoosing the Right CBSE School A Comprehensive Guide for Parents
Choosing the Right CBSE School A Comprehensive Guide for Parentsnavabharathschool99
 
ISYU TUNGKOL SA SEKSWLADIDA (ISSUE ABOUT SEXUALITY
ISYU TUNGKOL SA SEKSWLADIDA (ISSUE ABOUT SEXUALITYISYU TUNGKOL SA SEKSWLADIDA (ISSUE ABOUT SEXUALITY
ISYU TUNGKOL SA SEKSWLADIDA (ISSUE ABOUT SEXUALITYKayeClaireEstoconing
 
GRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTS
GRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTSGRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTS
GRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTSJoshuaGantuangco2
 
Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)
Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)
Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)lakshayb543
 
Influencing policy (training slides from Fast Track Impact)
Influencing policy (training slides from Fast Track Impact)Influencing policy (training slides from Fast Track Impact)
Influencing policy (training slides from Fast Track Impact)Mark Reed
 
INTRODUCTION TO CATHOLIC CHRISTOLOGY.pptx
INTRODUCTION TO CATHOLIC CHRISTOLOGY.pptxINTRODUCTION TO CATHOLIC CHRISTOLOGY.pptx
INTRODUCTION TO CATHOLIC CHRISTOLOGY.pptxHumphrey A Beña
 
MULTIDISCIPLINRY NATURE OF THE ENVIRONMENTAL STUDIES.pptx
MULTIDISCIPLINRY NATURE OF THE ENVIRONMENTAL STUDIES.pptxMULTIDISCIPLINRY NATURE OF THE ENVIRONMENTAL STUDIES.pptx
MULTIDISCIPLINRY NATURE OF THE ENVIRONMENTAL STUDIES.pptxAnupkumar Sharma
 
Proudly South Africa powerpoint Thorisha.pptx
Proudly South Africa powerpoint Thorisha.pptxProudly South Africa powerpoint Thorisha.pptx
Proudly South Africa powerpoint Thorisha.pptxthorishapillay1
 
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...Nguyen Thanh Tu Collection
 

Kürzlich hochgeladen (20)

USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...
USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...
USPS® Forced Meter Migration - How to Know if Your Postage Meter Will Soon be...
 
What is Model Inheritance in Odoo 17 ERP
What is Model Inheritance in Odoo 17 ERPWhat is Model Inheritance in Odoo 17 ERP
What is Model Inheritance in Odoo 17 ERP
 
Roles & Responsibilities in Pharmacovigilance
Roles & Responsibilities in PharmacovigilanceRoles & Responsibilities in Pharmacovigilance
Roles & Responsibilities in Pharmacovigilance
 
Keynote by Prof. Wurzer at Nordex about IP-design
Keynote by Prof. Wurzer at Nordex about IP-designKeynote by Prof. Wurzer at Nordex about IP-design
Keynote by Prof. Wurzer at Nordex about IP-design
 
THEORIES OF ORGANIZATION-PUBLIC ADMINISTRATION
THEORIES OF ORGANIZATION-PUBLIC ADMINISTRATIONTHEORIES OF ORGANIZATION-PUBLIC ADMINISTRATION
THEORIES OF ORGANIZATION-PUBLIC ADMINISTRATION
 
Grade 9 Q4-MELC1-Active and Passive Voice.pptx
Grade 9 Q4-MELC1-Active and Passive Voice.pptxGrade 9 Q4-MELC1-Active and Passive Voice.pptx
Grade 9 Q4-MELC1-Active and Passive Voice.pptx
 
Gas measurement O2,Co2,& ph) 04/2024.pptx
Gas measurement O2,Co2,& ph) 04/2024.pptxGas measurement O2,Co2,& ph) 04/2024.pptx
Gas measurement O2,Co2,& ph) 04/2024.pptx
 
Raw materials used in Herbal Cosmetics.pptx
Raw materials used in Herbal Cosmetics.pptxRaw materials used in Herbal Cosmetics.pptx
Raw materials used in Herbal Cosmetics.pptx
 
Incoming and Outgoing Shipments in 3 STEPS Using Odoo 17
Incoming and Outgoing Shipments in 3 STEPS Using Odoo 17Incoming and Outgoing Shipments in 3 STEPS Using Odoo 17
Incoming and Outgoing Shipments in 3 STEPS Using Odoo 17
 
Choosing the Right CBSE School A Comprehensive Guide for Parents
Choosing the Right CBSE School A Comprehensive Guide for ParentsChoosing the Right CBSE School A Comprehensive Guide for Parents
Choosing the Right CBSE School A Comprehensive Guide for Parents
 
ISYU TUNGKOL SA SEKSWLADIDA (ISSUE ABOUT SEXUALITY
ISYU TUNGKOL SA SEKSWLADIDA (ISSUE ABOUT SEXUALITYISYU TUNGKOL SA SEKSWLADIDA (ISSUE ABOUT SEXUALITY
ISYU TUNGKOL SA SEKSWLADIDA (ISSUE ABOUT SEXUALITY
 
GRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTS
GRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTSGRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTS
GRADE 4 - SUMMATIVE TEST QUARTER 4 ALL SUBJECTS
 
Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)
Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)
Visit to a blind student's school🧑‍🦯🧑‍🦯(community medicine)
 
Influencing policy (training slides from Fast Track Impact)
Influencing policy (training slides from Fast Track Impact)Influencing policy (training slides from Fast Track Impact)
Influencing policy (training slides from Fast Track Impact)
 
INTRODUCTION TO CATHOLIC CHRISTOLOGY.pptx
INTRODUCTION TO CATHOLIC CHRISTOLOGY.pptxINTRODUCTION TO CATHOLIC CHRISTOLOGY.pptx
INTRODUCTION TO CATHOLIC CHRISTOLOGY.pptx
 
MULTIDISCIPLINRY NATURE OF THE ENVIRONMENTAL STUDIES.pptx
MULTIDISCIPLINRY NATURE OF THE ENVIRONMENTAL STUDIES.pptxMULTIDISCIPLINRY NATURE OF THE ENVIRONMENTAL STUDIES.pptx
MULTIDISCIPLINRY NATURE OF THE ENVIRONMENTAL STUDIES.pptx
 
Proudly South Africa powerpoint Thorisha.pptx
Proudly South Africa powerpoint Thorisha.pptxProudly South Africa powerpoint Thorisha.pptx
Proudly South Africa powerpoint Thorisha.pptx
 
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
HỌC TỐT TIẾNG ANH 11 THEO CHƯƠNG TRÌNH GLOBAL SUCCESS ĐÁP ÁN CHI TIẾT - CẢ NĂ...
 
LEFT_ON_C'N_ PRELIMS_EL_DORADO_2024.pptx
LEFT_ON_C'N_ PRELIMS_EL_DORADO_2024.pptxLEFT_ON_C'N_ PRELIMS_EL_DORADO_2024.pptx
LEFT_ON_C'N_ PRELIMS_EL_DORADO_2024.pptx
 
TataKelola dan KamSiber Kecerdasan Buatan v022.pdf
TataKelola dan KamSiber Kecerdasan Buatan v022.pdfTataKelola dan KamSiber Kecerdasan Buatan v022.pdf
TataKelola dan KamSiber Kecerdasan Buatan v022.pdf
 

Parallel Code Module Execution on Processor Clusters

  • 1. 14 copies of a code module are to be executed in parallel on identical processors organized into two communicating clusters, A and B. Cluster A contains 16 processors and cluster B contains 32 processors. Code modules run on one processor at a time. a. How many different sets of processors can be used if cluster A has 3 failed processors and cluster B has 2 failed processors? b. How many different sets of processors can be used if all modules are to be executed either on cluster A or on cluster B? (This question is separate from a.)