[Pw_forum] error # 1 no scalar fft driver specified

[Rajesh]

Dear Prof Paulatto,
I installed QE6.1 without openmp option but its still giving the same error.
Any advice?

Thank you.
Rajesh

On Sun, Oct 15, 2017 at 5:47 PM, Rajesh <creativeidleminds at gmail.com> wrote:

> Ok. Thank you Prof Paulatto.
>
> On Sun, Oct 15, 2017 at 5:33 PM, Lorenzo Paulatto <paulatz at gmail.com>
> wrote:
>
>> Quantum-espresso has been using MPI long before openmp,  as a result the
>> MPI parallelism is more developped and more stable. I think you can stick
>> to just MPI with good result, even on a single workstation.
>>
>> hth
>>
>>
>> On 15/10/17 08:11, Rajesh wrote:
>>
>> Dear Prof Paulatto ,
>>
>> Than you for your response. I need to use qe for openmpi as well openmp
>> but on separate workstations. I think openmp works better on multi-cpu pc
>> and openmpi on multi node clusters. I am right?
>>
>> Thank you.
>>
>> On Sun, Oct 15, 2017 at 12:42 AM, Lorenzo Paulatto <paulatz at gmail.com>
>> wrote:
>>
>>> On 14/10/17 09:15, Rajesh wrote:
>>> > Dear Prof Giannozzi,
>>> > Thank you for your reply. But I need openmpi parallelization.
>>>
>>> openmpi is NOT OpenMP, the former is an open-source implementation of
>>> MPI, the later is shared-memory vectorization based on compile-time
>>> instructions. The first is required to run in parallel, you need both
>>> for huge number of CPUs.
>>>
>>> What do you need exactly ?
>>>
>>> --
>>> Lorenzo Paulatto - Paris
>>>
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>>
>>
>>
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>>
>> --
>> Lorenzo Paulatto - Paris
>>
>>
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>
>
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